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

---
 .../embedded-content/the-iframe-element/.gitkeep   |  0
 .../the-iframe-element/change_child.html           | 14 ++++++
 .../the-iframe-element/change_grandchild.html      |  4 ++
 .../the-iframe-element/change_parentage.html       | 22 +++++++++
 .../the-iframe-element/cross_origin_child.html     | 12 +++++
 .../cross_origin_grandchild.html                   | 11 +++++
 .../the-iframe-element/cross_origin_parentage.html | 19 ++++++++
 .../the-iframe-element/historical.html             | 16 +++++++
 .../the-iframe-element/iframe-allowfullscreen.html | 55 ++++++++++++++++++++++
 .../iframe-append-to-child-document.html           | 17 +++++++
 .../the-iframe-element/iframe-load-event.html      | 48 +++++++++++++++++++
 .../the-iframe-element/iframe-with-base-ref.html   |  9 ++++
 .../the-iframe-element/iframe-with-base.html       | 11 +++++
 .../the-iframe-element/iframe_harness.js           | 26 ++++++++++
 .../iframe_javascript_url_01.htm                   | 53 +++++++++++++++++++++
 .../iframe_sandbox_allow_script.html               | 46 ++++++++++++++++++
 .../iframe_sandbox_popups_escaping-1.html          | 25 ++++++++++
 .../iframe_sandbox_popups_escaping-2.html          | 31 ++++++++++++
 .../iframe_sandbox_popups_escaping-3.html          | 25 ++++++++++
 .../iframe_sandbox_popups_helper-1.html            | 16 +++++++
 .../iframe_sandbox_popups_helper-2.html            | 27 +++++++++++
 .../iframe_sandbox_popups_helper-3.html            | 17 +++++++
 .../iframe_sandbox_popups_nonescaping-1.html       | 15 ++++++
 .../iframe_sandbox_popups_nonescaping-2.html       | 18 +++++++
 .../iframe_sandbox_popups_nonescaping-3.html       | 15 ++++++
 .../the-iframe-element/move_iframe_in_dom_01.html  | 20 ++++++++
 .../the-iframe-element/move_iframe_in_dom_02.html  | 22 +++++++++
 .../the-iframe-element/move_iframe_in_dom_03.html  | 20 ++++++++
 .../the-iframe-element/move_iframe_in_dom_04.html  | 22 +++++++++
 .../the-iframe-element/same_origin_child.html      | 12 +++++
 .../the-iframe-element/same_origin_grandchild.html | 11 +++++
 .../the-iframe-element/same_origin_parentage.html  | 19 ++++++++
 .../embedded-content/the-iframe-element/stash.py   | 10 ++++
 .../the-iframe-element/support/blank.htm           |  1 +
 .../support/sandbox_allow_script.html              |  8 ++++
 35 files changed, 697 insertions(+)
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/.gitkeep
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_child.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_grandchild.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_parentage.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_child.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_grandchild.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_parentage.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/historical.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-allowfullscreen.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-append-to-child-document.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-load-event.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-with-base-ref.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-with-base.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_harness.js
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_javascript_url_01.htm
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_allow_script.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-1.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-2.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-3.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_01.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_02.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_03.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_04.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_child.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_grandchild.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_parentage.html
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/stash.py
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/support/blank.htm
 create mode 100644 testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/support/sandbox_allow_script.html

(limited to 'testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element')

diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/.gitkeep b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_child.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_child.html
new file mode 100644
index 000000000..738ceee52
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_child.html
@@ -0,0 +1,14 @@
+<body>
+    Child.
+    <iframe id="grandchild" src="change_grandchild.html"></iframe>
+</body>
+<script>
+    var timer = window.setInterval(poll, 100);
+    function poll() {
+        if (document.body.getAttribute("data-contains-grandchild")) {
+            var grandchild = document.getElementById("grandchild");
+            window.frameElement.parentNode.appendChild(grandchild);
+            window.clearTimeout(timer);
+        }
+    }
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_grandchild.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_grandchild.html
new file mode 100644
index 000000000..885622c2b
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_grandchild.html
@@ -0,0 +1,4 @@
+<body>Grandchild.</body>
+<script>
+    window.frameElement.parentNode.setAttribute("data-contains-grandchild", true);
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_parentage.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_parentage.html
new file mode 100644
index 000000000..1d62ccc48
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/change_parentage.html
@@ -0,0 +1,22 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Change the frame heriarchy</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+  <iframe src="change_child.html"></iframe>
+</body>
+<script>
+    async_test(function(t) {
+        var timer = window.setInterval(t.step_func(poll), 100);
+        function poll() {
+            // We wait for the grandchild's script to set the custom attribtue.
+            // Note that if this test passes, the grandchild's script must have been run twice,
+            // once to trigger the move from the child to here, and once to pass this test.
+            if (document.body.getAttribute("data-contains-grandchild")) {
+                window.clearTimeout(timer);
+                t.done();
+            }
+        }
+    });
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_child.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_child.html
new file mode 100644
index 000000000..8b44fe805
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_child.html
@@ -0,0 +1,12 @@
+<script src="iframe_harness.js"></script>
+<body>
+  <iframe src="cross_origin_grandchild.html"></iframe>
+</body>
+<script>
+    send_test_results({
+        "id": '79a52de8-4222-427e-92db-caec28e75f8e',
+        "parent": window.parent !== window,
+        "grandparent": window.parent.parent === window.parent,
+        "top": window.top === window.parent,
+    });
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_grandchild.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_grandchild.html
new file mode 100644
index 000000000..1eff64af1
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_grandchild.html
@@ -0,0 +1,11 @@
+<script src="iframe_harness.js"></script>
+<body>
+</body>
+<script>
+    send_test_results({
+        "id": '6c8da65d-2c5e-44ef-bb0b-b8b9849aab19',
+        "parent": window.parent !== window,
+        "grandparent": window.parent.parent !== window.parent,
+        "top": window.top === window.parent.parent,
+    });
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_parentage.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_parentage.html
new file mode 100644
index 000000000..cd27b8ea7
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross_origin_parentage.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Check the frame heriarchy</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="iframe_harness.js"></script>
+<body>
+  <iframe src="http://www1.web-platform.test:8000/html/semantics/embedded-content/the-iframe-element/cross_origin_child.html"></iframe>
+</body>
+<script>
+    get_test_results('bffa23ee-b45a-4e9a-9405-87ab437d5cfa');
+    get_test_results('79a52de8-4222-427e-92db-caec28e75f8e');
+    get_test_results('6c8da65d-2c5e-44ef-bb0b-b8b9849aab19');
+    send_test_results({
+        "id": 'bffa23ee-b45a-4e9a-9405-87ab437d5cfa',
+        "parent": window.parent === window,
+        "top": window.top === window,
+    });
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/historical.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/historical.html
new file mode 100644
index 000000000..850a52f46
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/historical.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<title>Historical iframe element features should not be supported</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id=log></div>
+<script>
+function t(property) {
+  test(function() {
+    assert_false(property in document.createElement('iframe'));
+  }, 'iframe.' + property + ' should not be supported');
+}
+
+// added in https://github.com/whatwg/html/commit/f6490f17f577fa3478791b29ad8c2b586418001f
+// removed in https://github.com/whatwg/html/commit/1490eba4dba5ab476f0981443a86c01acae01311
+t('seamless');
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-allowfullscreen.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-allowfullscreen.html
new file mode 100644
index 000000000..da5791a2d
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-allowfullscreen.html
@@ -0,0 +1,55 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Check how allowfullscreen affects fullscreen enabled flag</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org">
+<link rel="author" title="Mozilla" href="https://www.mozilla.org">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/browsers.html#initialise-the-document-object">
+<link rel="help" href="https://fullscreen.spec.whatwg.org/#fullscreen-enabled-flag">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<div id="log"></div>
+<script>
+  async_test(function(t) {
+    var iframe = document.createElement("iframe");
+    iframe.src = "support/blank.htm";
+    var eventWatcher = new EventWatcher(t, iframe, "load");
+    document.body.appendChild(iframe);
+    t.add_cleanup(function() {
+      document.body.removeChild(iframe);
+    });
+
+    assert_true(document.fullscreenEnabled, "Top level document has fullscreen enabled flag set");
+    eventWatcher.wait_for("load").then(t.step_func_done(function() {
+      assert_false(iframe.contentDocument.fullscreenEnabled, "Document inside iframe without allowfullscreen attribute should not have fullscreen enabled flag set");
+      iframe.setAttribute("allowfullscreen", true);
+      assert_true(iframe.contentDocument.fullscreenEnabled, "Fullscreen should be allowed when allowfullscreen attribute is set");
+      iframe.removeAttribute("allowfullscreen");
+      assert_false(iframe.contentDocument.fullscreenEnabled, "Fullscreen should be denied when allowfullscreen attribute is removed");
+    }));
+  }, "iframe-allowfullscreen");
+
+  /* Fullscreen enabled flag with about:blank */
+
+  function test_allowfullscreen_noload(setup_iframe, check) {
+    var iframe = document.createElement("iframe");
+    setup_iframe(iframe);
+    document.body.appendChild(iframe);
+    check(iframe.contentDocument);
+    document.body.removeChild(iframe);
+  }
+
+  test(function() {
+    test_allowfullscreen_noload(function() {}, function(doc) {
+      assert_false(doc.fullscreenEnabled, "Fullscreen should not be enabled without allowfullscreen attribute");
+    });
+  }, "iframe-noload-noallowfullscreen");
+
+  test(function() {
+    test_allowfullscreen_noload(function(iframe) {
+      iframe.setAttribute("allowfullscreen", true);
+    }, function(doc) {
+      assert_true(doc.fullscreenEnabled, "Fullscreen should be enabled with allowfullscreen attribute");
+    });
+  }, "iframe-noload-allowfullscreen");
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-append-to-child-document.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-append-to-child-document.html
new file mode 100644
index 000000000..ac8bd5e05
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-append-to-child-document.html
@@ -0,0 +1,17 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Append iframe element to its own child document</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<iframe id=x></iframe>
+<script>
+test(function() {
+  var iframe = document.getElementById('x');
+  var childWindow = iframe.contentWindow;
+  assert_equals(childWindow.parent, window);
+  childWindow.document.body.appendChild(iframe);
+  assert_equals(childWindow.parent, null);
+  assert_equals(iframe.contentWindow, null);
+  assert_equals(childWindow.document.body.firstChild, iframe);
+});
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-load-event.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-load-event.html
new file mode 100644
index 000000000..d245bf0b9
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-load-event.html
@@ -0,0 +1,48 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Test some sanity behavior around iframe load/error events</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<body>
+<script>
+async_test(function(t) {
+  var obj = document.createElement("iframe");
+  obj.onload = t.step_func_done(function(e){
+    assert_true(obj.contentWindow instanceof Window, "The iframe element should represent a nested browsing context.")
+    assert_equals(Object.getPrototypeOf(e).constructor, Event, "The load event should use the Event interface.");
+    assert_true(e.isTrusted, "The load event should be a trusted event.");
+    assert_false(e.cancelable, "The load event should not be a cancelable event.");
+    assert_false(e.bubbles, "The load event should not be a bubble event.");
+    assert_equals(e.target, obj, "The load event target should be the corresponding object element.");
+  });
+
+  obj.onerror = t.step_func_done(function(e){
+    assert_unreached("The error event should not be fired.");
+  });
+
+  var url = URL.createObjectURL(new Blob([""], { type: "text/html" }));
+
+  obj.src = url;
+  document.body.appendChild(obj);
+}, "load event of blob URL");
+
+async_test(function(t) {
+  var obj = document.createElement("iframe");
+  obj.onload = t.step_func_done(function(e){
+    assert_true(obj.contentWindow instanceof Window, "The object element should represent a nested browsing context.")
+    assert_equals(Object.getPrototypeOf(e).constructor, Event, "The load event should use the Event interface.");
+    assert_true(e.isTrusted, "The load event should be a trusted event.");
+    assert_false(e.cancelable, "The load event should not be a cancelable event.");
+    assert_false(e.bubbles, "The load event should not be a bubble event.");
+    assert_equals(e.target, obj, "The load event target should be the corresponding object element.");
+  });
+
+  obj.onerror = t.step_func_done(function(e){
+    assert_unreached("The error event should not be fired.");
+  });
+
+  document.body.appendChild(obj);
+}, "load event of initial about:blank");
+
+</script>
+</body>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-with-base-ref.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-with-base-ref.html
new file mode 100644
index 000000000..21f11d195
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-with-base-ref.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<html>
+<head>
+    <title>iframe Without Base Tag</title>
+</head>
+<body>
+    <iframe src="support/blank.htm">
+</body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-with-base.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-with-base.html
new file mode 100644
index 000000000..4637a41a4
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe-with-base.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<html>
+<head>
+    <title>iframe With Base Tag</title>
+    <link rel="match" href="iframe-with-base-ref.html">
+    <base href="support/">
+</head>
+<body>
+    <iframe src="blank.htm">
+</body>
+</html>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_harness.js b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_harness.js
new file mode 100644
index 000000000..f4ef511d1
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_harness.js
@@ -0,0 +1,26 @@
+function get_test_results(id) {
+    async_test(function(test) {
+        var timer = window.setInterval(test.step_func(loop), 100);
+        function loop() {
+            var xhr = new XMLHttpRequest();
+            xhr.open('GET', 'stash.py?id=' + id);
+            xhr.onreadystatechange = test.step_func(function() {
+                assert_equals(xhr.status, 200);
+                if (xhr.responseText) {
+                    assert_equals(xhr.responseText, "OK");
+                    test.done();
+                    window.clearTimeout(timer);
+                }
+            });
+            xhr.send();
+        }
+    });
+}
+
+function send_test_results(results) {
+    var ok = true;
+    for (result in results) { ok = ok && results[result]; }
+    var xhr = new XMLHttpRequest();
+    xhr.open('POST', 'stash.py?id=' + results.id);
+    xhr.send(ok ? "OK" : "FAIL: " + JSON.stringify(results));
+}
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_javascript_url_01.htm b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_javascript_url_01.htm
new file mode 100644
index 000000000..d6c2abe7d
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_javascript_url_01.htm
@@ -0,0 +1,53 @@
+<!DOCTYPE html><html><head><title>javascript: URL creating a document in an about:blank iframe</title>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#the-iframe-element">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#process-the-iframe-attributes">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<div id="log">FAILED (test did not run)</div>
+
+<iframe src="about:blank" name="ifr1"></iframe>
+<iframe src="" name="ifr2"></iframe>
+<iframe src="./" name="ifr3"></iframe>
+
+<script>
+var test = async_test();
+var results = {};
+var expected = {
+    ifr1:{url:"about:blank", sameDom: true},
+    ifr2:{url:"about:blank", sameDom: true},
+    ifr3:{url: location.href.replace(/\/[^\/]*$/, '/'), sameDom: true },
+    ifr4:{url:"about:blank", sameDom: true}
+}
+
+var js_url = 'javascript:"<html><script>var sameDom = false; try{var cn = top.document.body.className;sameDom = true;}catch(e){}; parent.postMessage( {url: document.URL, name: name, sameDom: sameDom}, \'*\')<\/script><body><p>JS-generated document</p></body></<html>";'
+window.addEventListener('message', function(e){
+    var ifr = e.data.name;
+    results[ifr] = e.data;
+    test.step(function(){
+        assert_equals(results[ifr].url, expected[ifr].url);
+        assert_equals(results[ifr].sameDom, expected[ifr].sameDom);
+    }, 'Testing URL and details of IFRAME ' + ifr);
+    if(Object.keys(results).length === Object.keys(expected).length){
+        test.done();
+    }
+}, false);
+
+var ifr = document.createElement('iframe');
+ifr.name = 'ifr4';
+document.body.appendChild(ifr);
+
+window.onload = function () {
+    for (var i = 0, frame, frames = document.getElementsByTagName('iframe'); frame = frames[i]; i++) {
+        try{
+            frame.src = js_url;
+        }catch(e){
+            results[frame.name] = 'Exception on setting!';
+        }
+    };
+}
+
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_allow_script.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_allow_script.html
new file mode 100644
index 000000000..cd05f2246
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_allow_script.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<meta charset="uft-8">
+<title>HTML Test: iframe_sandbox_allow_scripts</title>
+<link rel="author" title="Intel" href="http://www.intel.com/">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#attr-iframe-sandbox">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#the-iframe-element">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<div id="log"></div>
+<script>
+  // Set up all our script stuff before the iframe starts loading, so we don't
+  // miss any messages from it.
+  var step1 = false;
+  var t = async_test("iframe_sandbox_allow_scripts");
+
+  setup({timeout:1000});
+  window.addEventListener("message", callback1, false);
+
+  function run() {
+    window.removeEventListener("message", callback1, false);
+    document.getElementById("testIframe").sandbox = "allow-scripts";
+    document.getElementById("testIframe").contentWindow.location.reload();
+    window.addEventListener("message", callback2, false);
+  }
+
+  function callback1(e) {
+    step1= !step1;
+  }
+
+  function callback2(e) {
+    t.step(function () {
+      assert_false(step1, "[allow-scripts] is not set.");
+      assert_equals(e.data, "Script executed", "[allow-scripts] is set.");
+    });
+    t.done();
+  }
+
+  // Make sure the iframe loads before we mess with it.
+  window.addEventListener("load", function() {
+    // The load event might fire before a message from the child comes in...
+    // Wait a bit to see if that message does come in.
+    setTimeout(run, 500);
+  });
+</script>
+<iframe id="testIframe" src="support/sandbox_allow_script.html" sandbox="allow-same-origin" style="display:none"></iframe>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html
new file mode 100644
index 000000000..342d42203
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Check that popups from a sandboxed iframe escape the sandbox if
+       allow-popups-to-escape-sandbox is used</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<iframe sandbox="allow-scripts allow-popups allow-popups-to-escape-sandbox">
+</iframe>
+<script>
+  var t = async_test();
+  var ourOrigin;
+  onmessage = t.step_func(function(e) {
+    assert_equals(e.data, "hello", "This is our origin getter message");
+    ourOrigin = e.origin;
+
+    onmessage = t.step_func_done(function(e) {
+      assert_equals(e.origin, "null", "It came from a sandboxed iframe");
+      assert_equals(e.data.data, undefined, "Should have the right message");
+      assert_equals(e.data.origin, ourOrigin, "Should have escaped the sandbox");
+    });
+
+    document.querySelector("iframe").src = "iframe_sandbox_popups_helper-1.html";
+  });
+  postMessage("hello", "*");
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html
new file mode 100644
index 000000000..40ffbb1e0
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Check that popups from a sandboxed iframe escape the sandbox if
+       allow-popups-to-escape-sandbox is used</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<iframe sandbox="allow-scripts allow-popups allow-popups-to-escape-sandbox">
+</iframe>
+<script>
+  var t = async_test();
+  var ourOrigin;
+  onmessage = t.step_func(function(e) {
+    assert_equals(e.data, "hello", "This is our origin getter message");
+    ourOrigin = e.origin;
+
+    onmessage = t.step_func_done(function(e) {
+      assert_equals(e.origin, "null", "It came from a sandboxed iframe");
+      assert_equals(e.data.data, undefined, "Should have the right message");
+      assert_equals(e.data.origin, ourOrigin, "Should have escaped the sandbox");
+    });
+
+    var iframe = document.querySelector("iframe");
+    iframe.onload = function() {
+      frames[0].postMessage("start", "*");
+    }
+    iframe.src = "iframe_sandbox_popups_helper-2.html";
+  });
+  addEventListener("load", function() {
+    postMessage("hello", "*");
+  });
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html
new file mode 100644
index 000000000..2d35fd5fc
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Check that popups from a sandboxed iframe escape the sandbox if
+       allow-popups-to-escape-sandbox is used</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<iframe sandbox="allow-scripts allow-popups allow-popups-to-escape-sandbox">
+</iframe>
+<script>
+  var t = async_test();
+  var ourOrigin;
+  onmessage = t.step_func(function(e) {
+    assert_equals(e.data, "hello", "This is our origin getter message");
+    ourOrigin = e.origin;
+
+    onmessage = t.step_func_done(function(e) {
+      assert_equals(e.origin, "null", "It came from a sandboxed iframe");
+      assert_equals(e.data.data, undefined, "Should have the right message");
+      assert_equals(e.data.origin, ourOrigin, "Should have escaped the sandbox");
+    });
+
+    document.querySelector("iframe").src = "iframe_sandbox_popups_helper-3.html";
+  });
+  postMessage("hello", "*");
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-1.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-1.html
new file mode 100644
index 000000000..6b120f15d
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-1.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<script>
+  if (opener) {
+    // We're the popup.  Send back our state.  What we really want to send is
+    // our origin, but that will come automatically.
+    opener.postMessage(undefined, "*");
+    self.close();
+  } else {
+    // We're the child.  Start listening for messages and open ourselves as the
+    // popup.
+    onmessage = function (e) {
+      parent.postMessage({ data: e.data, origin: e.origin }, "*");
+    };
+    popupWin = window.open(location.href);
+  }
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-2.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-2.html
new file mode 100644
index 000000000..9c393fc95
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-2.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<body>
+<script>
+  if (opener) {
+    // We're the popup.  Send back our state.  What we really want to send is
+    // our origin, but that will come automatically.
+    opener.postMessage(undefined, "*");
+    self.close();
+  } else {
+    // We're the child.  Start listening for messages from our parent and open
+    // ourselves as the popup when we get the "start" message.
+    onmessage = function (e) {
+      if (e.data == "start") {
+        // Now listen for messages from the thing we plan to open.
+        onmessage = function(e) {
+          parent.postMessage({ data: e.data, origin: e.origin }, "*");
+        }
+
+        var a = document.createElement("a");
+        a.href = location.href;
+        a.target = "_blank";
+        document.body.appendChild(a);
+        a.click();
+      }
+    };
+  }
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-3.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-3.html
new file mode 100644
index 000000000..ef3e59037
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_helper-3.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<script>
+  if (opener) {
+    // We're the popup.  Send back our state.  What we really want to send is
+    // our origin, but that will come automatically.
+    opener.postMessage(undefined, "*");
+    self.close();
+  } else {
+    // We're the child.  Start listening for messages and open ourselves as the
+    // popup.
+    onmessage = function (e) {
+      parent.postMessage({ data: e.data, origin: e.origin }, "*");
+    };
+    var popupWin = window.open();
+    popupWin.location.href = location.href;
+  }
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html
new file mode 100644
index 000000000..3dee96d67
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Check that popups from a sandboxed iframe do not escape the sandbox</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script>
+  var t = async_test();
+  onmessage = t.step_func_done(function(e) {
+    assert_equals(e.origin, "null", "It came from a sandboxed iframe");
+    assert_equals(e.data.data, undefined, "Should have the right message");
+    assert_equals(e.data.origin, "null", "Should not have escaped the sandbox");
+  });
+</script>
+<iframe sandbox="allow-scripts allow-popups"
+        src="iframe_sandbox_popups_helper-1.html"></iframe>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html
new file mode 100644
index 000000000..27046db74
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html
@@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Check that popups from a sandboxed iframe do not escape the sandbox</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script>
+  var t = async_test();
+  onmessage = t.step_func_done(function(e) {
+    assert_equals(e.origin, "null", "It came from a sandboxed iframe");
+    assert_equals(e.data.data, undefined, "Should have the right message");
+    assert_equals(e.data.origin, "null", "Should not have escaped the sandbox");
+  });
+  addEventListener("load", function() {
+    frames[0].postMessage("start", "*");
+  });
+</script>
+<iframe sandbox="allow-scripts allow-popups"
+        src="iframe_sandbox_popups_helper-2.html"></iframe>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html
new file mode 100644
index 000000000..556387e14
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Check that popups from a sandboxed iframe do not escape the sandbox</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script>
+  var t = async_test();
+  onmessage = t.step_func_done(function(e) {
+    assert_equals(e.origin, "null", "It came from a sandboxed iframe");
+    assert_equals(e.data.data, undefined, "Should have the right message");
+    assert_equals(e.data.origin, "null", "Should not have escaped the sandbox");
+  });
+</script>
+<iframe sandbox="allow-scripts allow-popups"
+        src="iframe_sandbox_popups_helper-3.html"></iframe>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_01.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_01.html
new file mode 100644
index 000000000..efd563f51
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_01.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<title>moving modified IFRAME in document (original page about:blank, DOM modification)</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://html.spec.whatwg.org/#iframe-load-event-steps">
+<iframe src="about:blank"></iframe>
+<div id="target"></div>
+<script>
+onload = function() {
+  var ifr = document.getElementsByTagName('iframe')[0];
+  ifr.contentDocument.body.appendChild(ifr.contentDocument.createElement('p')).textContent = 'Modified document';
+  setTimeout(function() {
+    ifr.onload = function() {
+      assert_equals(ifr.contentDocument.body.textContent.indexOf('Modified'), -1);
+      done();
+    };
+    document.getElementById('target').appendChild(ifr);
+  }, 100);
+}
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_02.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_02.html
new file mode 100644
index 000000000..dbe266b29
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_02.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<title>moving modified IFRAME in document (original page about:blank, document.write modification)</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://html.spec.whatwg.org/#iframe-load-event-steps">
+<iframe src="about:blank"></iframe>
+<div id="target"></div>
+<script>
+onload = function() {
+  var ifr = document.getElementsByTagName('iframe')[0];
+  ifr.contentDocument.open();
+  ifr.contentDocument.write('Modified document');
+  ifr.contentDocument.close();
+  setTimeout(function() {
+    ifr.onload = function() {
+        assert_equals(ifr.contentDocument.body.textContent.indexOf('Modified'), -1);
+        done();
+    };
+    document.getElementById('target').appendChild(ifr);
+  }, 100);
+}
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_03.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_03.html
new file mode 100644
index 000000000..c07dd42dc
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_03.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<title>moving modified IFRAME in document (original page from server, DOM modification)</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://html.spec.whatwg.org/#iframe-load-event-steps">
+<iframe src="support/blank.htm"></iframe>
+<div id="target"></div>
+<script>
+onload = function() {
+  var ifr = document.getElementsByTagName('iframe')[0];
+  ifr.contentDocument.body.appendChild(ifr.contentDocument.createElement('p')).textContent = 'Modified document';
+  setTimeout(function() {
+    ifr.onload = function() {
+      assert_equals(ifr.contentDocument.body.textContent.indexOf('Modified'), -1);
+      done();
+    };
+    document.getElementById('target').appendChild(ifr);
+  }, 100);
+}
+</script>
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_04.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_04.html
new file mode 100644
index 000000000..755cd45d3
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/move_iframe_in_dom_04.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<title>moving modified IFRAME in document (original page from server, document.write modification)</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://html.spec.whatwg.org/#iframe-load-event-steps">
+<iframe src="support/blank.htm"></iframe>
+<div id="target"></div>
+<script>
+onload = function(){
+  var ifr = document.getElementsByTagName('iframe')[0];
+  ifr.contentDocument.open();
+  ifr.contentDocument.write('Modified document');
+  ifr.contentDocument.close();
+  setTimeout(function() {
+    ifr.onload = function () {
+      assert_equals(ifr.contentDocument.body.textContent.indexOf('Modified'), -1);
+      done();
+    };
+    document.getElementById('target').appendChild(ifr);
+  }, 100);
+}
+</script>
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_child.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_child.html
new file mode 100644
index 000000000..a36e231fa
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_child.html
@@ -0,0 +1,12 @@
+<script src="iframe_harness.js"></script>
+<body>
+  <iframe src="same_origin_grandchild.html"></iframe>
+</body>
+<script>
+    send_test_results({
+        "id": '08782f28-e313-47ae-8cd7-419f3e194b0a',
+        "parent": window.parent !== window,
+        "grandparent": window.parent.parent === window.parent,
+        "top": window.top === window.parent,
+    });
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_grandchild.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_grandchild.html
new file mode 100644
index 000000000..e7a2293b7
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_grandchild.html
@@ -0,0 +1,11 @@
+<script src="iframe_harness.js"></script>
+<body>
+</body>
+<script>
+    send_test_results({
+        "id": '66de8d44-7da7-47c7-9a52-41cba4f22bfe',
+        "parent": window.parent !== window,
+        "grandparent": window.parent.parent !== window.parent,
+        "top": window.top === window.parent.parent,
+    });
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_parentage.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_parentage.html
new file mode 100644
index 000000000..a163eb8ee
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/same_origin_parentage.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Check the frame heriarchy</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="iframe_harness.js"></script>
+<body>
+  <iframe src="same_origin_child.html"></iframe>
+</body>
+<script>
+    get_test_results('17381dae-9c3e-4661-9f2b-28eb07a5f2fc');
+    get_test_results('08782f28-e313-47ae-8cd7-419f3e194b0a');
+    get_test_results('66de8d44-7da7-47c7-9a52-41cba4f22bfe');
+    send_test_results({
+        "id": '17381dae-9c3e-4661-9f2b-28eb07a5f2fc',
+        "parent": window.parent === window,
+        "top": window.top === window,
+    });
+</script>
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/stash.py b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/stash.py
new file mode 100644
index 000000000..0b8693a90
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/stash.py
@@ -0,0 +1,10 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+def main(request, response):
+    if request.method == 'POST':
+        request.server.stash.put(request.GET["id"], request.body)
+        return ''
+    return request.server.stash.take(request.GET["id"])
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/support/blank.htm b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/support/blank.htm
new file mode 100644
index 000000000..6c70bcfe4
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/support/blank.htm
@@ -0,0 +1 @@
+<html></html>
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/support/sandbox_allow_script.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/support/sandbox_allow_script.html
new file mode 100644
index 000000000..95c30dec1
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/support/sandbox_allow_script.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<meta charset="uft-8">
+<title>HTML Test: sandbox_allow_scripts</title>
+<link rel="author" title="Intel" href="http://www.intel.com/">
+<div id="test">Before change</div>
+<script>
+  parent.window.postMessage("Script executed", "*");
+</script>
-- 
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