From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 .../scripting-1/the-script-element/.gitkeep        |  0
 .../scripting-1/the-script-element/async_001.htm   | 18 ++++
 .../scripting-1/the-script-element/async_002.htm   | 31 +++++++
 .../scripting-1/the-script-element/async_003.htm   | 39 +++++++++
 .../scripting-1/the-script-element/async_004.htm   | 37 ++++++++
 .../scripting-1/the-script-element/async_005.htm   | 39 +++++++++
 .../scripting-1/the-script-element/async_006.htm   | 45 ++++++++++
 .../scripting-1/the-script-element/async_007.htm   | 48 +++++++++++
 .../scripting-1/the-script-element/async_008.htm   | 47 +++++++++++
 .../scripting-1/the-script-element/async_009.htm   | 25 ++++++
 .../scripting-1/the-script-element/async_010.htm   | 54 ++++++++++++
 .../scripting-1/the-script-element/async_011.htm   | 19 +++++
 .../scripting-1/the-script-element/contains.json   | 18 ++++
 .../the-script-element/external-script-utf8.js     |  5 ++
 .../external-script-windows1250.js                 |  5 ++
 .../the-script-element/fetch-src/alpha/base.html   | 15 ++++
 .../the-script-element/fetch-src/alpha/test.js     |  1 +
 .../the-script-element/fetch-src/beta/test.js      |  1 +
 .../fetch-src/empty-with-base.html                 | 27 ++++++
 .../the-script-element/fetch-src/empty.html        | 32 +++++++
 .../the-script-element/fetch-src/failure.html      | 25 ++++++
 .../the-script-element/fetch-src/unreachable.js    |  1 +
 .../scripting-1/the-script-element/historical.html | 53 ++++++++++++
 .../scripting-1/the-script-element/load-event.html | 24 ++++++
 .../scripting-1/the-script-element/log.py          | 13 +++
 .../the-script-element/resources/cross-origin.py   | 10 +++
 .../the-script-element/script-charset-01.html      | 89 ++++++++++++++++++++
 .../the-script-element/script-charset-02.html      | 40 +++++++++
 .../the-script-element/script-charset-03.html      | 20 +++++
 .../script-crossorigin-network.html                | 49 +++++++++++
 .../the-script-element/script-crossorigin.html     | 39 +++++++++
 .../script-for-event-xhtml.xhtml                   | 22 +++++
 .../the-script-element/script-for-event.html       | 93 ++++++++++++++++++++
 .../the-script-element/script-language-type.html   | 18 ++++
 .../the-script-element/script-languages-01.html    | 24 ++++++
 .../the-script-element/script-languages-02.html    | 98 ++++++++++++++++++++++
 .../script-noembed-noframes-iframe.xhtml           | 36 ++++++++
 .../script-not-executed-after-shutdown-child.html  | 12 +++
 .../script-not-executed-after-shutdown.html        | 18 ++++
 .../script-not-executed-after-shutdown.js          |  1 +
 .../script-not-found-not-executed-2.py             |  4 +
 .../script-not-found-not-executed.html             | 19 +++++
 .../script-not-found-not-executed.py               |  4 +
 .../script-onerror-insertion-point-1.html          | 12 +++
 .../script-onerror-insertion-point-2.html          | 13 +++
 .../script-onload-insertion-point.html             | 12 +++
 .../the-script-element/script-onload-string.html   | 17 ++++
 .../the-script-element/script-text-xhtml.xhtml     | 28 +++++++
 .../the-script-element/script-text.html            | 72 ++++++++++++++++
 .../the-script-element/scripting-enabled.html      | 16 ++++
 .../the-script-element/serve-with-content-type.py  | 15 ++++
 .../script-onerror-insertion-point-1-helper.html   |  2 +
 .../script-onerror-insertion-point-2-helper.html   |  2 +
 .../script-onload-insertion-point-helper.html      |  2 +
 .../script-onload-insertion-point-helper.js        |  1 +
 55 files changed, 1410 insertions(+)
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/.gitkeep
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_001.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_002.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_003.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_004.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_005.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_006.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_007.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_008.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_009.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_010.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_011.htm
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/contains.json
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/external-script-utf8.js
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/external-script-windows1250.js
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/alpha/base.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/alpha/test.js
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/beta/test.js
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/empty-with-base.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/empty.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/failure.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/unreachable.js
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/historical.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/load-event.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/log.py
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/resources/cross-origin.py
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-01.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-02.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-03.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-crossorigin-network.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-crossorigin.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-for-event-xhtml.xhtml
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-for-event.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-language-type.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-languages-01.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-languages-02.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-noembed-noframes-iframe.xhtml
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown-child.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown.js
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed-2.py
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed.py
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-1.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onload-insertion-point.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onload-string.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-text-xhtml.xhtml
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-text.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/scripting-enabled.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/serve-with-content-type.py
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onerror-insertion-point-1-helper.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onerror-insertion-point-2-helper.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onload-insertion-point-helper.html
 create mode 100644 testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onload-insertion-point-helper.js

(limited to 'testing/web-platform/tests/html/semantics/scripting-1/the-script-element')

diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/.gitkeep b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_001.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_001.htm
new file mode 100644
index 000000000..370152683
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_001.htm
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>Async property on a dynamically-created script is true by default</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test checks the Async property on a dynamically-created script element. By default it should be true." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-script-async"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script type="text/javascript">
+            test(function() {assert_true(document.createElement("script").async)}, "Async property on a dynamically-created script is true by default");
+        </script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_002.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_002.htm
new file mode 100644
index 000000000..e1850ff6e
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_002.htm
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>Changes to the 'async' attribute are reflected in the async property</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures changes to the 'async' attribute are reflected in the async property." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-script-async"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script type="text/javascript">
+          test(function() {
+            var s = document.createElement("script");
+            s.async = false;
+            s.setAttribute('async', ''); /*Should change s.async to true*/
+            assert_true(s.async)
+          }, "Test 'async' attribute are reflected in the async property with setAttribute");
+
+          test(function() {
+            var s = document.createElement("script");
+            s.async = false;
+            s.setAttribute('async', ''); /*Should change s.async to true*/
+            s.removeAttribute('async'); /*Should change s.async to false*/
+            assert_false(s.async)
+          }, "Test 'async' attribute are reflected in the async property with removeAttribute");
+        </script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_003.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_003.htm
new file mode 100644
index 000000000..b9a854c6b
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_003.htm
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>An async script does not block the parser while downloading</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures an async script does not block the parser while downloading." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#attr-script-async"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script type="text/javascript">
+        var t = async_test("An async script does not block the parser while downloading");
+
+        function timeout()
+        {
+            t.step(function(){ assert_equals(document.getElementById("testresult").innerHTML, "21")});
+            t.done();
+        }
+
+        var timer = setTimeout(timeout, 4000);
+
+        function log(text)
+        {
+            var textNode = document.createTextNode(text);
+            document.getElementById("testresult").appendChild(textNode);
+        }
+        </script>
+
+        <span id="testresult"></span>
+
+        <script src="log.py?sec=3&id=1" async></script>
+        <script>
+            log('2');
+        </script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_004.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_004.htm
new file mode 100644
index 000000000..7908b757a
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_004.htm
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>An async script executes as soon as possible after a download is complete</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures an async script executes as soon as possible after a download is complete." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#attr-script-async"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script type="text/javascript">
+        var t = async_test("async script executes as soon as possible after a download is complete");
+
+        function timeout()
+        {
+            t.step(function(){ assert_equals(document.getElementById("testresult").innerHTML, "21")});
+            t.done();
+        }
+
+        var timer = setTimeout(timeout, 4000);
+
+        function log(text)
+        {
+            var textNode = document.createTextNode(text);
+            document.getElementById("testresult").appendChild(textNode);
+        }
+        </script>
+
+        <span id="testresult"></span>
+
+        <script src="log.py?sec=3&id=1" async></script>
+        <script src="log.py?sec=1&id=2" async></script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_005.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_005.htm
new file mode 100644
index 000000000..4519d7234
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_005.htm
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>A script element with both async and defer set should execute asynchronously</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures a script element with both async and defer set should execute asynchronously." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#attr-script-async"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+ <div id=log></div>
+        <script type="text/javascript">
+        var t = async_test("A script element with both async and defer set should execute asynchronously");
+
+        function timeout()
+        {
+            t.step(function(){ assert_equals(document.getElementById("testresult").innerHTML, "2134")});
+            t.done();
+        }
+
+        var timer = setTimeout(timeout, 5000);
+
+        function log(text)
+        {
+            var textNode = document.createTextNode(text);
+            document.getElementById("testresult").appendChild(textNode);
+        }
+        </script>
+
+        <span id="testresult"></span>
+
+        <script type="text/javascript" src="log.py?sec=1&id=1" defer async></script>
+        <script type="text/javascript">log('2');</script>
+        <script type="text/javascript" src="log.py?sec=3&id=3"></script>
+        <script type="text/javascript">log('4');</script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_006.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_006.htm
new file mode 100644
index 000000000..86eb99897
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_006.htm
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>A dynamically created external script executes asynchronously</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures a dynamically created external script executes asynchronously." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#force-async"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script type="text/javascript">
+        var t = async_test("dynamically created external script executes asynchronously");
+
+        function timeout()
+        {
+            t.step(function(){ assert_equals(document.getElementById("testresult").innerHTML, "321")});
+            t.done();
+        }
+
+        var timer = setTimeout(timeout, 4000);
+
+        function log(text)
+        {
+            var textNode = document.createTextNode(text);
+            document.getElementById("testresult").appendChild(textNode);
+        }
+        </script>
+
+        <span id="testresult"></span>
+        <script type="text/javascript">
+            var one = document.createElement("script");
+            one.src="log.py?sec=3&id=1";
+            document.head.appendChild(one);
+
+            var two = document.createElement("script");
+            two.src="log.py?sec=1&id=2";
+            document.head.appendChild(two);
+
+            log('3');
+        </script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_007.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_007.htm
new file mode 100644
index 000000000..8df0fba37
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_007.htm
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>Ordered async script execution when script.async == false</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures Ordered async script execution when script.async == false" />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#script-processing-src-sync"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script type="text/javascript">
+        var t = async_test("Ordered async script execution when script.async == false");
+
+        function timeout()
+        {
+            t.step(function(){ assert_equals(document.getElementById("testresult").innerHTML, "312")});
+            t.done();
+        }
+
+        var timer = setTimeout(timeout, 8000);
+
+        function log(text)
+        {
+            var textNode = document.createTextNode(text);
+            document.getElementById("testresult").appendChild(textNode);
+        }
+        </script>
+
+        <span id="testresult"></span>
+        <script type="text/javascript">
+            var one = document.createElement("script");
+            one.src="log.py?sec=3&id=1";
+            one.async = false;
+            document.head.appendChild(one);
+
+            var two = document.createElement("script");
+            two.src="log.py?sec=1&id=2";
+            two.async = false;
+            document.head.appendChild(two);
+        </script>
+        <script type="text/javascript">
+            log('3');
+        </script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_008.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_008.htm
new file mode 100644
index 000000000..73529cc31
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_008.htm
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>Async script element execution delays the window's load event</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures an async script element's execution delays the window's load event." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#delay-the-load-event"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script type="text/javascript">
+        var t = async_test("Async script element execution delays the window's load event");
+
+        function timeout()
+        {
+            t.step(function(){ assert_equals(document.getElementById("testresult").innerHTML, "213")});
+            t.done();
+        }
+
+        var timer = setTimeout(timeout, 8000);
+
+        function log(text)
+        {
+            var textNode = document.createTextNode(text);
+            document.getElementById("testresult").appendChild(textNode);
+        }
+        </script>
+
+        <span id="testresult"></span>
+        <script type="text/javascript">
+            window.addEventListener("load", function() {
+                log("3");
+                timeout();
+            }, false);
+
+            var s1 = document.createElement("script");
+            s1.src = "log.py?sec=2&id=1";
+            document.head.appendChild(s1);
+        </script>
+        <script type="text/javascript">
+            log('2');
+        </script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_009.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_009.htm
new file mode 100644
index 000000000..501edda06
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_009.htm
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>Document.write() silently fails from an Async script</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures Document.write() silently fails from an Async script." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#execute-the-script-block"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+        <script type="text/javascript">
+        var t = async_test("Document.write() silently fails from an Async script");
+
+        var log = t.step_func(function() {
+          document.write("<span id='writtenText'/>");
+          assert_equals(null, document.getElementById('writtenText'));
+          t.done();
+        });
+        </script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script type="text/javascript" src="log.py?sec=1&id=1" async></script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_010.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_010.htm
new file mode 100644
index 000000000..959a8aa27
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_010.htm
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>Removing an async script before execution</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="This test ensures that an async script still executes if it is removed from a markup before the download is complete. The other two scripts that come after it in insertion order should execute as well." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#execute-the-script-block"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+        <script type="text/javascript">
+        var t = async_test("Removing an async script before execution");
+
+        function timeout()
+        {
+            t.step(function(){ assert_equals(document.getElementById("testresult").innerHTML, "4123")});
+            t.done();
+        }
+
+        var timer = setTimeout(timeout, 8000);
+
+        function log(text)
+        {
+            var textNode = document.createTextNode(text);
+            document.getElementById("testresult").appendChild(textNode);
+        }
+        </script>
+    </head>
+    <body>
+        <div id=log></div>
+        <span id="testresult"></span>
+        <script type="text/javascript">
+            var s1 = document.createElement("script");
+            s1.src="log.py?sec=2&id=1";
+            s1.async = false;
+            document.body.appendChild(s1);
+
+            var s2 = document.createElement("script");
+            s2.src="log.py?sec=1&id=2";
+            s2.async = false;
+            document.body.appendChild(s2);
+
+            var s3 = document.createElement("script");
+            s3.id = "s3";
+            s3.src="log.py?sec=0&id=3";
+            s3.async = false;
+            document.body.appendChild(s3);
+
+            //Remove s1 (Should still execute)
+            document.body.removeChild(s1);
+        </script>
+        <script type="text/javascript">log('4');</script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_011.htm b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_011.htm
new file mode 100644
index 000000000..d80e463ce
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/async_011.htm
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>An empty parser-inserted script element should return async=true</title>
+        <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
+        <meta description="An empty parser-inserted script element should return async=true." />
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="https://html.spec.whatwg.org/multipage/#prepare-a-script"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+    </head>
+    <body>
+        <div id=log></div>
+        <script></script>
+        <script type="text/javascript">
+            test(function() {   assert_true(document.getElementsByTagName("script")[2].async)}, "An empty parser-inserted script element should return async=true");
+        </script>
+    </body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/contains.json b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/contains.json
new file mode 100644
index 000000000..e31ce4003
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/contains.json
@@ -0,0 +1,18 @@
+[
+    {
+        "id": "scriptinglanguages",
+        "original_id": "scriptingLanguages"
+    },
+    {
+        "id": "restrictions-for-contents-of-script-elements",
+        "original_id": "restrictions-for-contents-of-script-elements"
+    },
+    {
+        "id": "inline-documentation-for-external-scripts",
+        "original_id": "inline-documentation-for-external-scripts"
+    },
+    {
+        "id": "scripttagxslt",
+        "original_id": "scriptTagXSLT"
+    }
+]
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/external-script-utf8.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/external-script-utf8.js
new file mode 100644
index 000000000..eb442c97b
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/external-script-utf8.js
@@ -0,0 +1,5 @@
+(function() {
+  window.getSomeString = function() {
+    return "śćążź"; //<- these are five Polish letters, similar to scazz. It can be read correctly only with windows 1250 encoding.
+  };
+})();
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/external-script-windows1250.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/external-script-windows1250.js
new file mode 100644
index 000000000..50de6932b
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/external-script-windows1250.js
@@ -0,0 +1,5 @@
+(function() {
+  window.getSomeString = function() {
+    return "œæ¹¿Ÿ"; //<- these are five Polish letters, similar to scazz. It can be read correctly only with windows 1250 encoding.
+  };
+})();
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/alpha/base.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/alpha/base.html
new file mode 100644
index 000000000..dc0fa9dab
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/alpha/base.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Script src with a base URL</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<base href=../beta/>
+<div id=log></div>
+<script>
+function do_test(path) {
+  test(function() {
+    assert_equals(path, "beta");
+  });
+}
+</script>
+<script src=test.js></script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/alpha/test.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/alpha/test.js
new file mode 100644
index 000000000..3cbbb12e2
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/alpha/test.js
@@ -0,0 +1 @@
+do_test("alpha");
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/beta/test.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/beta/test.js
new file mode 100644
index 000000000..4ce0f5338
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/beta/test.js
@@ -0,0 +1 @@
+do_test("beta");
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/empty-with-base.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/empty-with-base.html
new file mode 100644
index 000000000..edc2c3d6f
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/empty-with-base.html
@@ -0,0 +1,27 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Script src with an empty URL</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<base href=unreachable.js>
+<div id=log></div>
+<script>
+async_test(function(t) {
+  window.unreachable = this.unreached_func("Should not load unreachable.js");
+  var queued = false;
+  var script = document.createElement("script");
+  script.onerror = this.step_func_done(function(ev) {
+    assert_equals(ev.type, "error");
+    assert_false(ev.bubbles, "bubbles");
+    assert_false(ev.cancelable, "cancelable");
+    assert_true(ev.isTrusted, "isTrusted");
+    assert_equals(ev.target, script);
+    assert_true(ev instanceof Event, "instanceof Event");
+    assert_class_string(ev, "Event");
+    assert_true(queued, "event should not be dispatched synchronously");
+  });
+  script.setAttribute("src", "");
+  document.body.appendChild(script);
+  queued = true;
+});
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/empty.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/empty.html
new file mode 100644
index 000000000..d127f1eb3
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/empty.html
@@ -0,0 +1,32 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Script src with an empty URL</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<div id=log></div>
+<script>
+// For a better error message in case the UA tries to load "" (which resolves
+// to this document).
+setup({
+  "allow_uncaught_exception": true,
+});
+async_test(function(t) {
+  window.onerror = this.unreached_func("Should not get an error reported to " +
+                                       "the window before the script");
+  var queued = false;
+  var script = document.createElement("script");
+  script.onerror = this.step_func_done(function(ev) {
+    assert_equals(ev.type, "error");
+    assert_false(ev.bubbles, "bubbles");
+    assert_false(ev.cancelable, "cancelable");
+    assert_true(ev.isTrusted, "isTrusted");
+    assert_equals(ev.target, script);
+    assert_true(ev instanceof Event, "instanceof Event");
+    assert_class_string(ev, "Event");
+    assert_true(queued, "event should not be dispatched synchronously");
+  });
+  script.setAttribute("src", "");
+  document.body.appendChild(script);
+  queued = true;
+});
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/failure.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/failure.html
new file mode 100644
index 000000000..b49e51740
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/failure.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Script src with an invalid URL</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<div id=log></div>
+<script>
+async_test(function(t) {
+  var queued = false;
+  var script = document.createElement("script");
+  script.onerror = this.step_func_done(function(ev) {
+    assert_equals(ev.type, "error");
+    assert_false(ev.bubbles, "bubbles");
+    assert_false(ev.cancelable, "cancelable");
+    assert_true(ev.isTrusted, "isTrusted");
+    assert_equals(ev.target, script);
+    assert_true(ev instanceof Event, "instanceof Event");
+    assert_class_string(ev, "Event");
+    assert_true(queued, "event should not be dispatched synchronously");
+  });
+  script.setAttribute("src", "//[]");
+  document.body.appendChild(script);
+  queued = true;
+});
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/unreachable.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/unreachable.js
new file mode 100644
index 000000000..ca7fdba71
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/fetch-src/unreachable.js
@@ -0,0 +1 @@
+unreachable();
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/historical.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/historical.html
new file mode 100644
index 000000000..1f1a91228
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/historical.html
@@ -0,0 +1,53 @@
+<!doctype html>
+<title>Historical script element features should not be supported</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+function t(property) {
+  test(function() {
+    assert_false(property in document.createElement('script'));
+  }, 'script.' + property + ' should not be supported');
+}
+// added in https://github.com/whatwg/html/commit/69f83cf2eacf4543860ccb7abab0ff5bb1e8b594
+// removed in https://github.com/whatwg/html/commit/1a0b5e8377d59462e05a5cffda4b8592324a2785
+t('onbeforescriptexecute');
+t('onafterscriptexecute');
+
+var t_onbeforescriptexecute_attr = async_test('onbeforescriptexecute content attribute should not be supported');
+var t_onafterscriptexecute_attr = async_test('onafterscriptexecute content attribute should not be supported');
+var t_beforescriptexecute_event = async_test(function() {
+  addEventListener('beforescriptexecute', this.step_func(function() {
+    assert_unreached();
+  }), true);
+}, 'beforescriptexecute event should not be supported');
+var t_afterscriptexecute_event = async_test(function() {
+  addEventListener('afterscriptexecute', this.step_func(function() {
+    assert_unreached();
+  }), true);
+}, 'afterscriptexecute event should not be supported');
+
+var a = false;
+
+onload = function() {
+  t_onbeforescriptexecute_attr.step(function() {
+    assert_true(a);
+    this.done();
+  });
+  t_onafterscriptexecute_attr.step(function() {
+    assert_true(a);
+    this.done();
+  });
+  t_beforescriptexecute_event.step(function() {
+    assert_true(a);
+    this.done();
+  });
+  t_afterscriptexecute_event.step(function() {
+    assert_true(a);
+    this.done();
+  });
+};
+</script>
+<script onbeforescriptexecute="t_onbeforescriptexecute_attr.step(function() { assert_unreached(); });"
+        onafterscriptexecute="t_onafterscriptexecute_attr.step(function() { assert_unreached(); });">
+a = true;
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/load-event.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/load-event.html
new file mode 100644
index 000000000..25c2ddf3e
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/load-event.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#execute-the-script-block">
+<link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me">
+
+<script>
+"use strict";
+
+async_test(function(t) {
+    window.scriptExecuting = function () {
+        setTimeout(t.step_func_done(() => {
+            assert_equals(window.onloadHappened, undefined);
+        }), 0);
+    };
+}, "load events should not be fired for inline scripts");
+</script>
+
+
+<script onload="window.onloadHappened = true;">
+"use strict";
+window.scriptExecuting();
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/log.py b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/log.py
new file mode 100644
index 000000000..6803bb3e4
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/log.py
@@ -0,0 +1,13 @@
+import time
+
+def main(request, response):
+    response.headers.append("Content-Type", "text/javascript")
+    try:
+        script_id = int(request.GET.first("id"))
+        delay = int(request.GET.first("sec"))
+    except:
+        response.set_error(400, "Invalid parameter")
+
+    time.sleep(int(delay))
+
+    return "log('%s')" % script_id
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/resources/cross-origin.py b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/resources/cross-origin.py
new file mode 100644
index 000000000..f8e05d966
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/resources/cross-origin.py
@@ -0,0 +1,10 @@
+def main(request, response):
+    headers = [("Content-Type", "text/javascript")]
+    milk = request.cookies.first("milk", None)
+
+    if milk is None:
+        return headers, "var included = false;"
+    elif milk.value == "yes":
+        return headers, "var included = true;"
+
+    return headers, "var included = false;"
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-01.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-01.html
new file mode 100644
index 000000000..c5ac0d0a6
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-01.html
@@ -0,0 +1,89 @@
+<!DOCTYPE html>
+<head>
+  <meta charset="utf-8">
+  <title>Script @type: unknown parameters</title>
+  <link rel="author" title="askalski" href="github.com/askalski">
+  <link rel="help" href="https://html.spec.whatwg.org/multipage/#scriptingLanguages">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <div id="log"></div>
+
+  <!-- "Step1" tests -->
+  <!-- charset is set incorrectly via Content Type "text/javascript;charset=utf-8" in response
+      which has priority before a correct setting in "charset" attribute of script tag.
+   -->
+  <script type="text/javascript"
+    src="serve-with-content-type.py?fn=external-script-windows1250.js&ct=text/javascript%3Bcharset=utf-8" charset="windows-1250">
+  </script>
+  <script>
+  test(function() {
+    //these strings should not match, since the file charset is set incorrectly
+    assert_not_equals(window.getSomeString(), "śćążź");
+  });
+  </script>
+  <!-- charset is set correctly via Content Type "text/javascript;charset=utf-8" in response
+      which has priority before a incorrect setting in "charset" attribute of script tag.
+   -->
+
+  <script type="text/javascript"
+    src="serve-with-content-type.py?fn=external-script-windows1250.js&ct=text/javascript%3Bcharset=windows-1250" charset="utf-8">
+  </script>
+  <script>
+  //the charset is set correctly via Content Type "text/javascript;charset=windows-1250" in respones
+  test(function() {
+    assert_equals(window.getSomeString(), "śćążź");
+  });
+  </script>
+
+  <!-- end of step1 tests, now step2 tests -->
+  <!-- in this case, the response's Content Type does not bring charset information.
+  Second step takes block character encoding if available.-->
+  <script type="text/javascript"
+    src="serve-with-content-type.py?fn=external-script-windows1250.js&ct=text/javascript" charset="utf-8">
+  </script>
+  <script>
+  test(function() {
+    //these strings should not match, since the file charset is set incorrectly in "charset" tag of <script> above
+    assert_not_equals(window.getSomeString(), "śćążź");
+  });
+  </script>
+  <!-- charset is set correctly via Content Type "text/javascript;charset=utf-8" in response
+      which has priority before a incorrect setting in "charset" attribute of script tag.
+   -->
+
+  <script type="text/javascript"
+    src="serve-with-content-type.py?fn=external-script-windows1250.js&ct=text/javascript" charset="windows-1250">
+  </script>
+  <script>
+  //the charset is set correctly via content attribute in <script> above
+  test(function() {
+    assert_equals(window.getSomeString(), "śćążź");
+  });
+  </script>
+
+  <!-- end of step2 tests, now step3 tests -->
+  <!-- in this case, neither response's Content Type nor charset attribute bring correct charset information.
+  Third step takes this document's character encoding (declared correctly as UTF-8).-->
+  <script type="text/javascript"
+    src="serve-with-content-type.py?fn=external-script-windows1250.js&ct=text/javascript">
+  </script>
+  <script>
+  test(function() {
+    //these strings should not match, since the tested file is in windows-1250, and document is utf-8
+    assert_not_equals(window.getSomeString(), "śćążź");
+  });
+  </script>
+
+  <script type="text/javascript"
+    src="serve-with-content-type.py?fn=external-script-utf8.js&ct=text/javascript">
+  </script>
+  <script>
+  //these strings should match, both document and tested file are utf-8
+  test(function() {
+    assert_equals(window.getSomeString(), "śćążź");
+  });
+  </script>
+
+  <!-- the last portion of tests (step4) are in file script-charset-02.html
+
+</head>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-02.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-02.html
new file mode 100644
index 000000000..77a015bb7
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-02.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<head>
+  <!-- TODO:
+  askalski: while this test pass, it does not test anything now.
+  It should test, whether with no document.charset set in any way, the
+  external scripts will get decoded using utf-8 as fallback character encoding.
+  It seems like utf-8 is also a fallback encoding to html (my guess), so
+  the part of the code I was attempting to test is never reached.
+  -->
+  <title>Script @type: unknown parameters</title>
+  <link rel="author" title="askalski" href="github.com/askalski">
+  <link rel="help" href="https://html.spec.whatwg.org/multipage/#scriptingLanguages">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <div id="log"></div>
+
+  <!-- test of step4, which is taking utf-8 as fallback -->
+  <!-- in this case, neither response's Content Type nor charset attribute bring correct charset information.
+  Furthermore, document's encoding is not set.-->
+  <script type="text/javascript"
+    src="serve-with-content-type.py?fn=external-script-windows1250.js&ct=text/javascript">
+  </script>
+  <script>
+  test(function() {
+    //these strings should not match, since the tested file is in windows-1250, and fallback is defined as utf-8
+    assert_not_equals(window.getSomeString().length, 5);
+  });
+  </script>
+
+  <script type="text/javascript"
+    src="serve-with-content-type.py?fn=external-script-utf8.js&ct=text/javascript">
+  </script>
+  <script>
+  //these strings should match, since fallback utf-8 is the correct setting.
+  test(function() {
+    assert_equals(window.getSomeString().length, 5);
+  });
+  </script>
+
+</head>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-03.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-03.html
new file mode 100644
index 000000000..4ff4cc6b0
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-charset-03.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<head>
+<meta charset="utf-8">
+<title>Script changing @charset</title>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#scriptingLanguages">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+async_test(function() {
+  var s = document.createElement("script");
+  s.src = "external-script-windows1250.js";
+  s.charset = "windows-1250";
+  document.body.appendChild(s);
+  s.charset = "utf-8";
+  window.onload = this.step_func_done(function() {
+    assert_equals(window.getSomeString(), "\u015b\u0107\u0105\u017c\u017a");
+  });
+})
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-crossorigin-network.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-crossorigin-network.html
new file mode 100644
index 000000000..488dd4488
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-crossorigin-network.html
@@ -0,0 +1,49 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>HTMLScriptElement: crossorigin attribute network test</title>
+<link rel="author" title="KiChjang" href="mailto:kungfukeith11@gmail.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#cors-settings-attribute">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<body>
+  <script type="text/javascript">
+  var test1 = async_test(document.title + "1");
+  var test2 = async_test(document.title + "2");
+  var test3 = async_test(document.title + "3");
+
+  var script1 = document.createElement("script");
+  script1.src = "resources/cross-origin.py";
+  script1.crossOrigin = "use-credentials";
+  var script2 = document.createElement("script");
+  script2.src = "resources/cross-origin.py";
+  script2.crossOrigin = "gibberish";
+  var script3 = document.createElement("script");
+  script3.src = "resources/cross-origin.py";
+
+  document.cookie = "milk=yes";
+  document.body.appendChild(script1);
+  script1.onload = function() {
+    test1.step(function() {
+      assert_true(included, "credentials should be included in script request");
+      test1.done();
+    });
+  };
+
+  document.body.appendChild(script2);
+  script2.onload = function() {
+    test2.step(function() {
+      assert_true(included, "invalid values should default to include credentials due to response tainting");
+      test2.done();
+    });
+  };
+
+  document.body.appendChild(script3);
+  script3.onload = function() {
+    test3.step(function() {
+      assert_true(included, "missing value should default to include credentials");
+      test3.done();
+    });
+  };
+  </script>
+</body>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-crossorigin.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-crossorigin.html
new file mode 100644
index 000000000..52857a08e
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-crossorigin.html
@@ -0,0 +1,39 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>HTMLScriptElement: crossOrigin IDL attribute</title>
+<link rel="author" title="KiChjang" href="mailto:kungfukeith11@gmail.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#cors-settings-attribute">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script id="script1"></script>
+<script id="script2" crossorigin=""></script>
+<script id="script3" crossorigin="foo"></script>
+<script id="script4" crossorigin="anonymous"></script>
+<script id="script5" crossorigin="use-credentials"></script>
+<script>
+test(function() {
+  var script1 = document.getElementById("script1");
+  var script2 = document.getElementById("script2");
+  var script3 = document.getElementById("script3");
+  var script4 = document.getElementById("script4");
+  var script5 = document.getElementById("script5");
+
+  assert_equals(script1.crossOrigin, null, "Missing value default should be null");
+  assert_equals(script2.crossOrigin, "anonymous", "Empty string should map to anonymous");
+  assert_equals(script3.crossOrigin, "anonymous", "Invalid value default should be anonymous");
+  assert_equals(script4.crossOrigin, "anonymous", "anonymous should be parsed correctly");
+  assert_equals(script5.crossOrigin, "use-credentials", "use-credentials should be parsed correctly");
+
+  script1.crossOrigin = "bar";
+  assert_equals(script1.crossOrigin, "anonymous", "Setting to invalid value would default to anonymous");
+
+  script2.crossOrigin = null;
+  assert_equals(script2.crossOrigin, null, "Resetting to null should work");
+
+  script4.crossOrigin = "use-credentials";
+  assert_equals(script4.crossOrigin, "use-credentials", "Switching from anonymous to use-credentials should work");
+
+  script5.crossOrigin = "anonymous";
+  assert_equals(script5.crossOrigin, "anonymous", "Switching from use-credentials to anonymous should work");
+}, document.title);
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-for-event-xhtml.xhtml b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-for-event-xhtml.xhtml
new file mode 100644
index 000000000..69c4ef1f8
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-for-event-xhtml.xhtml
@@ -0,0 +1,22 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+  <title>Scripts with for and event attributes</title>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+  <div id="log"></div>
+  <script>
+    var run = false;
+  </script>
+  <script for="window" event="bar">
+    // This script should not run, but should not cause a parse error either.
+    run = true;
+  </script>
+  <script>
+    test(function() {
+      assert_false(run, "Script was unexpectedly run.")
+    }, "Scripts with for and event attributes should not run.")
+  </script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-for-event.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-for-event.html
new file mode 100644
index 000000000..552ea7041
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-for-event.html
@@ -0,0 +1,93 @@
+<!DOCTYPE html>
+<title>Scripts with for and event attributes</title>
+<link rel="author" title="Matheus Kerschbaum" href="mailto:matjk7@gmail.com">
+<link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#prepare-a-script">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var expected = [
+  false,
+  false,
+  false,
+  false,
+  false,
+  false,
+  false,
+  false,
+  false,
+  false,
+  false,
+  false,
+  true,
+  true,
+  false,
+  true,
+  true,
+];
+var run = expected.map(function() { return false });
+</script>
+<script for="w&#x130;ndow" event="onload">
+run[0] = true;
+</script>
+<script for="window" event="onload x">
+run[1] = true;
+</script>
+<script for="window" event="onload(x">
+run[2] = true;
+</script>
+<script for="window" event="onload(x)">
+run[3] = true;
+</script>
+<script for="window" event="onclick">
+run[4] = true;
+</script>
+<script for="" event="onload">
+run[5] = true;
+</script>
+<script for="window" event="">
+run[6] = true;
+</script>
+<script for="" event="">
+run[7] = true;
+</script>
+<script for="&#xa0;window" event="onload">
+run[8] = true;
+</script>
+<script for="window&#xa0;" event="onload">
+run[9] = true;
+</script>
+<script for="window" event="&#xa0;onload">
+run[10] = true;
+</script>
+<script for="window" event="onload&#xa0;">
+run[11] = true;
+</script>
+<script for=" window " event=" onload ">
+run[12] = true;
+</script>
+<script for=" window " event=" onload() ">
+run[13] = true;
+</script>
+<script for="object" event="handler">
+run[14] = true;
+</script>
+<script event="handler">
+run[15] = true;
+</script>
+<script for="object">
+run[16] = true;
+</script>
+<script>
+test(function() {
+  for (var i = 0; i < run.length; ++i) {
+    test(function() {
+      var script = document.querySelectorAll("script[for], script[event]")[i];
+      assert_equals(run[i], expected[i],
+                    "script for=" + format_value(script.getAttribute("for")) +
+                    " event=" + format_value(script.getAttribute("event")));
+    }, "Script " + i);
+  }
+});
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-language-type.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-language-type.html
new file mode 100644
index 000000000..b94834c83
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-language-type.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<title>Script: combinations of @type and @language</title>
+<link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#prepare-a-script">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var run = false;
+</script>
+<script type="" language="foo">
+run = true;
+</script>
+<script>
+test(function() {
+  assert_equals(run, true);
+}, "A script with empty type should run");
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-languages-01.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-languages-01.html
new file mode 100644
index 000000000..f2f2724df
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-languages-01.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<title>Script @type: unknown parameters</title>
+<link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#scriptingLanguages">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<div id="test">
+<script type="text/javascript;charset=UTF-8">
+test(function() {
+  assert_unreached("'charset' should have prevented this script from executing.");
+})
+</script>
+<script type="text/javascript;x-test=abc">
+test(function() {
+  assert_unreached("'x-test' should have prevented this script from executing.");
+})
+</script>
+</div>
+<script>
+test(function() {
+  assert_true(true)
+})
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-languages-02.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-languages-02.html
new file mode 100644
index 000000000..69613e510
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-languages-02.html
@@ -0,0 +1,98 @@
+<!DOCTYPE html>
+<title>Script @type: JavaScript types</title>
+<link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#scriptingLanguages">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+function testAttribute(attr, val, shouldRun) {
+  test(function() {
+    assert_false(ran, "ran variable not reset");
+    var script = document.createElement("script");
+    script.setAttribute(attr, val);
+    script.textContent = "ran = true;"
+    document.body.appendChild(script);
+    assert_equals(ran, shouldRun);
+  }, "Script should" + (shouldRun ? "" : "n't") + " run with " + attr + "=" + format_value(val));
+  ran = false
+}
+function testType(type) {
+  testAttribute("type", type, true);
+}
+function testLanguage(lang) {
+  testAttribute("language", lang, true);
+}
+function testTypeIgnored(type) {
+  testAttribute("type", type, false);
+}
+function testLanguageIgnored(lang) {
+  testAttribute("language", lang, false);
+}
+var application = [
+  "ecmascript",
+  "javascript",
+  "x-ecmascript",
+  "x-javascript"
+];
+var text = [
+  "ecmascript",
+  "javascript",
+  "javascript1.0",
+  "javascript1.1",
+  "javascript1.2",
+  "javascript1.3",
+  "javascript1.4",
+  "javascript1.5",
+  "jscript",
+  "livescript",
+  "x-ecmascript",
+  "x-javascript"
+];
+var spaces = [" ", "\t", "\n", "\r", "\f"];
+
+var ran = false;
+
+// Type attribute
+
+testType("");
+testTypeIgnored(" ");
+
+application.map(function(t) { return "application/" + t; }).forEach(testType);
+application.map(function(t) { return ("application/" + t).toUpperCase(); }).forEach(testType);
+
+spaces.forEach(function(s) {
+  application.map(function(t) { return "application/" + t + s; }).forEach(testType);
+  application.map(function(t) { return s + "application/" + t; }).forEach(testType);
+})
+
+application.map(function(t) { return "application/" + t + "\0"; }).forEach(testTypeIgnored);
+application.map(function(t) { return "application/" + t + "\0foo"; }).forEach(testTypeIgnored);
+
+text.map(function(t) { return "text/" + t; }).forEach(testType);
+text.map(function(t) { return ("text/" + t).toUpperCase(); }).forEach(testType);
+
+spaces.forEach(function(s) {
+  text.map(function(t) { return "text/" + t + s; }).forEach(testType);
+  text.map(function(t) { return s + "text/" + t; }).forEach(testType);
+})
+
+text.map(function(t) { return "text/" + t + "\0"; }).forEach(testTypeIgnored);
+text.map(function(t) { return "text/" + t + "\0foo"; }).forEach(testTypeIgnored);
+
+// Language attribute
+
+testLanguage("");
+testLanguageIgnored(" ");
+
+text.forEach(testLanguage);
+text.map(function(t) { return t.toUpperCase(); }).forEach(testLanguage);
+
+text.map(function(t) { return t + " "; }).forEach(testLanguageIgnored);
+text.map(function(t) { return " " + t; }).forEach(testLanguageIgnored);
+text.map(function(t) { return t + "xyz"; }).forEach(testLanguageIgnored);
+text.map(function(t) { return "xyz" + t; }).forEach(testLanguageIgnored);
+
+text.map(function(t) { return t + "\0"; }).forEach(testLanguageIgnored);
+text.map(function(t) { return t + "\0foo"; }).forEach(testLanguageIgnored);
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-noembed-noframes-iframe.xhtml b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-noembed-noframes-iframe.xhtml
new file mode 100644
index 000000000..8dd9ceb9a
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-noembed-noframes-iframe.xhtml
@@ -0,0 +1,36 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>Script inside noembed, noframes and iframe</title>
+<link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com"/>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+var run = [];
+</script>
+<div id="test">
+<noembed>
+<script>
+run.push("noembed");
+</script>
+</noembed>
+<noframes>
+<script>
+run.push("noframes");
+</script>
+</noframes>
+<iframe>
+<script>
+run.push("iframe");
+</script>
+</iframe>
+</div>
+<script>
+test(function() {
+  assert_array_equals(run, ["noembed", "noframes", "iframe"], "Haven't run.");
+});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown-child.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown-child.html
new file mode 100644
index 000000000..2f3ce2368
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown-child.html
@@ -0,0 +1,12 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Script is not executed after script thread is shutdown</title>
+<script>
+onload = function() {
+  script_executed = parent.script_executed;
+  s = document.createElement('script');
+  s.type = 'text/javascript';
+  s.src = 'script-not-executed-after-shutdown.js?pipe=trickle(d3)';
+  document.body.appendChild(s);
+};
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown.html
new file mode 100644
index 000000000..704e8ed36
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown.html
@@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Script is not executed after script thread is shutdown</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<iframe id="testiframe" src="script-not-executed-after-shutdown-child.html"></iframe>
+<script>
+async_test(function(t) {
+  window.script_executed = t.unreached_func("script executed in removed iframe");
+  let iframe = document.getElementById("testiframe");
+  iframe.onload = function() {
+    iframe.parentNode.removeChild(iframe);
+  };
+  setTimeout(function() {
+    t.done();
+  }, 5000);
+});
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown.js
new file mode 100644
index 000000000..ccdf14c0c
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-executed-after-shutdown.js
@@ -0,0 +1 @@
+script_executed();
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed-2.py b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed-2.py
new file mode 100644
index 000000000..53caed7c0
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed-2.py
@@ -0,0 +1,4 @@
+def main(request, response):
+    headers = [("Content-Type", "text/javascript")]
+    body = "test2_token = \"script executed\";"
+    return 200, headers, body
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed.html
new file mode 100644
index 000000000..44ad30b01
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<meta charset="utf-8">
+<title></title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>var test1_token = "script not executed";</script>
+<script src="script-not-found-not-executed.py"></script>
+<script>
+test(function(){
+    assert_equals(test1_token, "script not executed");
+}, "Script that 404");
+</script>
+<script>var test2_token = "script not executed";</script>
+<script src="script-not-found-not-executed-2.py"></script>
+<script>
+test(function(){
+    assert_equals(test2_token, "script executed");
+}, "Script that does not 404");
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed.py b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed.py
new file mode 100644
index 000000000..7722bd3f2
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-not-found-not-executed.py
@@ -0,0 +1,4 @@
+def main(request, response):
+    headers = [("Content-Type", "text/javascript")]
+    body = "test1_token = \"script executed\";"
+    return 404, headers, body
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-1.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-1.html
new file mode 100644
index 000000000..0fe39b11a
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-1.html
@@ -0,0 +1,12 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Test that the insertion point is defined in the error event of a parser-inserted script that actually started a fetch (but just had it fail).</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script>
+  var t = async_test("");
+  var writeDone = t.step_func_done(function(text) {
+    assert_equals(text, "Some text");
+  });
+</script>
+<iframe src="support/script-onerror-insertion-point-1-helper.html"></iframe>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html
new file mode 100644
index 000000000..6d3f3ef09
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Test that the insertion point is not defined in the error event of a
+  parser-inserted script that has an unparseable URL</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script>
+  var t = async_test("");
+  var writeDone = t.step_func_done(function(text) {
+    assert_equals(text, "text");
+  });
+</script>
+<iframe src="support/script-onerror-insertion-point-2-helper.html"></iframe>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onload-insertion-point.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onload-insertion-point.html
new file mode 100644
index 000000000..ce3ddeee6
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onload-insertion-point.html
@@ -0,0 +1,12 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Test that the insertion point is defined in the load event of a parser-inserted script.</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script>
+  var t = async_test("");
+  var writeDone = t.step_func_done(function(text) {
+    assert_equals(text, "Some text");
+  });
+</script>
+<iframe src="support/script-onload-insertion-point-helper.html"></iframe>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onload-string.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onload-string.html
new file mode 100644
index 000000000..85f2d4dcf
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-onload-string.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<title>Script: setting onload to a string</title>
+<link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id=log></div>
+<script>
+test(function() {
+  var s = document.createElement("script");
+  assert_equals(s.onload, null);
+  var dummy = function() {};
+  s.onload = dummy;
+  assert_equals(s.onload, dummy);
+  s.onload = "w('load DOM appended')";
+  assert_equals(s.onload, null);
+}, "Setting onload to a string should convert to null.");
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-text-xhtml.xhtml b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-text-xhtml.xhtml
new file mode 100644
index 000000000..33a4635db
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-text-xhtml.xhtml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>HTMLScriptElement.text</title>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-script-text"/>
+<script src="/resources/testharness.js"/>
+<script src="/resources/testharnessreport.js"/>
+</head>
+<body>
+<div id="log"></div>
+<script>
+<x>7;</x>
+<![CDATA[
+  var x = "y";
+]]>
+</script>
+<script>
+var script;
+setup(function() {
+  script = document.body.getElementsByTagName("script")[0];
+})
+test(function() {
+  assert_equals(script.text, '\n\n\n  var x = "y";\n\n')
+  assert_equals(script.textContent, '\n7;\n\n  var x = "y";\n\n')
+}, "Getter with CDATA section")
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-text.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-text.html
new file mode 100644
index 000000000..6e8647224
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/script-text.html
@@ -0,0 +1,72 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>HTMLScriptElement.text</title>
+<link rel=help href="https://html.spec.whatwg.org/multipage/#dom-script-text">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var script;
+setup(function() {
+  script = document.createElement("script")
+  script.appendChild(document.createComment("COMMENT"))
+  script.appendChild(document.createTextNode("  TEXT  "))
+  script.appendChild(document.createProcessingInstruction("P", "I"))
+  script.appendChild(document.createElement("a"))
+        .appendChild(document.createTextNode("ELEMENT"))
+})
+
+test(function() {
+  assert_equals(script.text, "  TEXT  ")
+  assert_equals(script.textContent, "  TEXT  ELEMENT")
+}, "Getter")
+
+test(function() {
+  script.text = " text "
+  assert_equals(script.text, " text ")
+  assert_equals(script.textContent, " text ")
+  assert_equals(script.firstChild.nodeType, Node.TEXT_NODE)
+  assert_equals(script.firstChild.data, " text ")
+  assert_equals(script.firstChild, script.lastChild)
+  assert_array_equals(script.childNodes, [script.firstChild])
+}, "Setter (non-empty string)")
+
+test(function() {
+  script.text = ""
+  assert_equals(script.text, "")
+  assert_equals(script.textContent, "")
+  assert_equals(script.firstChild, null)
+}, "Setter (empty string)")
+
+test(function() {
+  script.text = null
+  assert_equals(script.text, "null")
+  assert_equals(script.textContent, "null")
+  assert_equals(script.firstChild.nodeType, Node.TEXT_NODE)
+  assert_equals(script.firstChild.data, "null")
+  assert_equals(script.firstChild, script.lastChild)
+}, "Setter (null)")
+
+test(function() {
+  script.text = undefined
+  assert_equals(script.text, "undefined")
+  assert_equals(script.textContent, "undefined")
+  assert_equals(script.firstChild.nodeType, Node.TEXT_NODE)
+  assert_equals(script.firstChild.data, "undefined")
+  assert_equals(script.firstChild, script.lastChild)
+}, "Setter (undefined)")
+
+test(function() {
+  var s = document.createElement("script");
+  var text = document.createTextNode("one");
+  s.appendChild(text);
+
+  assert_equals(s.firstChild, text);
+  assert_equals(text.nodeValue, "one");
+
+  s.text = "two";
+  assert_not_equals(s.firstChild, text);
+  assert_equals(text.nodeValue, "one");
+  assert_equals(s.firstChild.nodeValue, "two");
+}, "Setter (text node reuse)")
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/scripting-enabled.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/scripting-enabled.html
new file mode 100644
index 000000000..a2671a78f
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/scripting-enabled.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>JS is disabled on documents created without a browsing context</title>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-n-script">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+test(function(t) {
+  var doc = document.implementation.createHTMLDocument();
+  window.fail_test = t.unreached_func('should not have been called');
+
+  var script = doc.createElement('script');
+  script.textContent = 'fail_test();';
+  doc.documentElement.appendChild(script);
+}, 'script on document returned by createHTMLDocument should not execute');
+</script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/serve-with-content-type.py b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/serve-with-content-type.py
new file mode 100644
index 000000000..7cfe6f4ce
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/serve-with-content-type.py
@@ -0,0 +1,15 @@
+import os
+
+def main(request, response):
+    directory = os.path.dirname(__file__)
+
+    try:
+        file_name = request.GET.first("fn")
+        content_type = request.GET.first("ct")
+        with open(os.path.join(directory, file_name), "rb") as fh:
+            content = fh.read()
+
+        response.headers.set("Content-Type", content_type)
+        response.content = content
+    except:
+        response.set_error(400, "Not enough parameters or file not found")
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onerror-insertion-point-1-helper.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onerror-insertion-point-1-helper.html
new file mode 100644
index 000000000..d9b0c84ca
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onerror-insertion-point-1-helper.html
@@ -0,0 +1,2 @@
+Some <script src="nosuchscripthere.js"
+             onerror="document.write('text'); parent.writeDone(document.documentElement.textContent)"></script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onerror-insertion-point-2-helper.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onerror-insertion-point-2-helper.html
new file mode 100644
index 000000000..7a1739815
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onerror-insertion-point-2-helper.html
@@ -0,0 +1,2 @@
+Some <script src="http://this is not parseable"
+             onerror="document.write('text'); parent.writeDone(document.documentElement.textContent)"></script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onload-insertion-point-helper.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onload-insertion-point-helper.html
new file mode 100644
index 000000000..f0236b4fb
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onload-insertion-point-helper.html
@@ -0,0 +1,2 @@
+Some <script src="script-onload-insertion-point-helper.js"
+             onload="document.write('xt'); parent.writeDone(document.documentElement.textContent)"></script>
diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onload-insertion-point-helper.js b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onload-insertion-point-helper.js
new file mode 100644
index 000000000..8a96a0b78
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/support/script-onload-insertion-point-helper.js
@@ -0,0 +1 @@
+document.write("te");
-- 
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