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

---
 .../browsing-the-web/unloading-documents/.gitkeep  |  0
 .../browsing-the-web/unloading-documents/001.html  | 15 ++++++++++
 .../browsing-the-web/unloading-documents/002.html  | 15 ++++++++++
 .../browsing-the-web/unloading-documents/003.html  | 15 ++++++++++
 .../browsing-the-web/unloading-documents/004.html  | 15 ++++++++++
 .../browsing-the-web/unloading-documents/005.html  | 15 ++++++++++
 .../browsing-the-web/unloading-documents/MANIFEST  | 33 ++++++++++++++++++++++
 .../browsing-the-web/unloading-documents/base.html | 14 +++++++++
 .../beforeunload-on-history-back-1.html            |  5 ++++
 .../beforeunload-on-history-back.html              | 31 ++++++++++++++++++++
 .../beforeunload-on-navigation-of-parent-1.html    |  2 ++
 .../beforeunload-on-navigation-of-parent-2.html    |  4 +++
 .../beforeunload-on-navigation-of-parent.html      | 31 ++++++++++++++++++++
 .../unloading-documents/contains.json              |  6 ++++
 .../navigation-within-beforeunload-1.html          | 10 +++++++
 .../navigation-within-beforeunload-2.html          |  4 +++
 .../navigation-within-beforeunload.html            | 26 +++++++++++++++++
 .../pagehide-on-history-forward-1.html             |  2 ++
 .../pagehide-on-history-forward.html               | 19 +++++++++++++
 .../unloading-documents/prompt/001-1.html          | 10 +++++++
 .../unloading-documents/prompt/001-2.html          |  1 +
 .../unloading-documents/prompt/001.html            | 14 +++++++++
 .../unloading-documents/prompt/002-1.html          |  7 +++++
 .../unloading-documents/prompt/002.html            | 20 +++++++++++++
 .../unloading-documents/prompt/003.html            | 20 +++++++++++++
 .../unloading-documents/prompt/MANIFEST            | 14 +++++++++
 .../unloading-documents/prompt/manual-001.html     |  9 ++++++
 .../unloading-documents/prompt/manual-002.html     |  9 ++++++
 .../unloading-documents/prompt/manual-003.html     | 11 ++++++++
 .../unloading-documents/prompt/manual-004.html     | 11 ++++++++
 .../unloading-documents/prompt/manual-005.html     | 22 +++++++++++++++
 .../unloading-documents/prompt/manual-006.html     |  9 ++++++
 .../unloading-documents/prompt/next.html           |  2 ++
 .../unloading-documents/support/001-1.html         | 23 +++++++++++++++
 .../unloading-documents/support/001a.html          |  7 +++++
 .../unloading-documents/support/001b.html          |  5 ++++
 .../unloading-documents/support/002-1.html         | 28 ++++++++++++++++++
 .../unloading-documents/support/002a.html          |  7 +++++
 .../unloading-documents/support/002b.html          |  5 ++++
 .../unloading-documents/support/003-1.html         | 23 +++++++++++++++
 .../unloading-documents/support/003a.html          |  8 ++++++
 .../unloading-documents/support/003b.html          |  5 ++++
 .../unloading-documents/support/004-1.html         | 25 ++++++++++++++++
 .../unloading-documents/support/004a.html          |  8 ++++++
 .../unloading-documents/support/004b.html          | 18 ++++++++++++
 .../unloading-documents/support/005-1.html         | 13 +++++++++
 .../unloading-documents/support/005a.html          |  8 ++++++
 .../unloading-documents/support/005b.html          | 17 +++++++++++
 .../unloading-documents/unload/001-1.html          |  4 +++
 .../unloading-documents/unload/001-2.html          |  2 ++
 .../unloading-documents/unload/001.html            | 25 ++++++++++++++++
 .../unloading-documents/unload/002-1.html          |  4 +++
 .../unloading-documents/unload/002.html            | 33 ++++++++++++++++++++++
 .../unloading-documents/unload/003-1.html          |  4 +++
 .../unloading-documents/unload/003.html            | 33 ++++++++++++++++++++++
 .../unloading-documents/unload/004-1.html          |  5 ++++
 .../unloading-documents/unload/004.html            | 28 ++++++++++++++++++
 .../unloading-documents/unload/006-1.html          | 20 +++++++++++++
 .../unloading-documents/unload/006-2.html          |  5 ++++
 .../unloading-documents/unload/006.html            | 18 ++++++++++++
 .../unloading-documents/unload/007-1.html          | 21 ++++++++++++++
 .../unloading-documents/unload/007-2.html          |  5 ++++
 .../unloading-documents/unload/007.html            | 28 ++++++++++++++++++
 .../unloading-documents/unload/008-1.html          |  4 +++
 .../unloading-documents/unload/008.html            | 16 +++++++++++
 .../unloading-documents/unload/009-1.html          |  4 +++
 .../unloading-documents/unload/009.html            | 16 +++++++++++
 .../unloading-documents/unload/MANIFEST            | 21 ++++++++++++++
 .../unloading-documents/unload/manual-001-1.html   |  2 ++
 .../unloading-documents/unload/manual-001.html     |  5 ++++
 70 files changed, 924 insertions(+)
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/.gitkeep
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/001.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/002.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/003.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/004.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/005.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/MANIFEST
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/base.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-history-back-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-history-back.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent-2.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/contains.json
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload-2.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/pagehide-on-history-forward-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/pagehide-on-history-forward.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001-2.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/002-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/002.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/003.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/MANIFEST
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-001.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-002.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-003.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-004.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-005.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-006.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/next.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001a.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001b.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002a.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002b.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003a.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003b.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004a.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004b.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005a.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005b.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001-2.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/002-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/002.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/003-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/003.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006-2.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007-2.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/008-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/008.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/009-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/009.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/MANIFEST
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/manual-001-1.html
 create mode 100644 testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/manual-001.html

(limited to 'testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents')

diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/.gitkeep b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/001.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/001.html
new file mode 100644
index 000000000..1ef88d3cc
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/001.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<title>document.open in unload</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+var win;
+
+t.step(function() {
+  win = window.open("support/001-1.html");
+});
+
+add_completion_callback(function() {win.close()});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/002.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/002.html
new file mode 100644
index 000000000..a4e0b243e
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/002.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<title>document.open in unload</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+var win;
+
+t.step(function() {
+  win = window.open("support/002-1.html");
+});
+
+add_completion_callback(function() {win.close()});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/003.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/003.html
new file mode 100644
index 000000000..d0a19e0dd
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/003.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<title>document.open in beforeunload with link</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+var win;
+
+t.step(function() {
+  win = window.open("support/003-1.html");
+});
+
+add_completion_callback(function() {win.close()});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/004.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/004.html
new file mode 100644
index 000000000..fca926f65
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/004.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<title>document.open in beforeunload with button</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+var win;
+
+t.step(function() {
+  win = window.open("support/004-1.html");
+});
+
+add_completion_callback(function() {win.close()});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/005.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/005.html
new file mode 100644
index 000000000..c215fb88e
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/005.html
@@ -0,0 +1,15 @@
+<!doctype html>
+<title>document.open in pagehide in iframe</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+var win;
+
+t.step(function() {
+  win = window.open("support/005-1.html");
+});
+
+add_completion_callback(function() {win.close()});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/MANIFEST b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/MANIFEST
new file mode 100644
index 000000000..f77806795
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/MANIFEST
@@ -0,0 +1,33 @@
+support 001-1.html
+support 001a.html
+support 001b.html
+001.html
+support 002-1.html
+support 002a.html
+support 002b.html
+002.html
+support 003-1.html
+support 003a.html
+support 003b.html
+003.html
+support 004-1.html
+support 004a.html
+support 004b.html
+004.html
+support 005-1.html
+support 005a.html
+support 005b.html
+005.html
+base.html
+support beforeunload-on-history-back-1.html
+beforeunload-on-history-back.html
+support beforeunload-on-navigation-of-parent-1.html
+support beforeunload-on-navigation-of-parent-2.html
+beforeunload-on-navigation-of-parent.html
+support navigation-within-beforeunload-1.html
+support navigation-within-beforeunload-2.html
+navigation-within-beforeunload.html
+support pagehide-on-history-forward-1.html
+pagehide-on-history-forward.html
+dir prompt
+dir unload
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/base.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/base.html
new file mode 100644
index 000000000..70c07cba4
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/base.html
@@ -0,0 +1,14 @@
+<!doctype html>
+Base
+<script>
+onpagehide = function() {
+  if(top.base_hide) {
+    top.base_hide();
+  }
+}
+onpageshow = function() {
+if (top.base_show) {
+  top.base_show();
+}
+}
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-history-back-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-history-back-1.html
new file mode 100644
index 000000000..4403cfa8e
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-history-back-1.html
@@ -0,0 +1,5 @@
+<!doctype html>
+001-1
+<script>
+addEventListener("beforeunload", function() {top.t.step(function() {top.beforeunload_fired = true})}, false);
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-history-back.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-history-back.html
new file mode 100644
index 000000000..5b0415c42
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-history-back.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<title>beforeunload event fires on history navigation back</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+beforeunload_fired = false;
+var t = async_test();
+
+var base_count = 0;
+
+onload = function() {setTimeout(t.step_func(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+  iframe.onload = t.step_func(function() {
+    iframe.onload = null;
+    history.go(-1);
+  });
+
+  iframe.src = "beforeunload-on-history-back-1.html";
+}), 100)};
+
+base_show = t.step_func(function() {
+  base_count++;
+  if (base_count > 1) {
+    assert_true(beforeunload_fired);
+    t.done();
+  }
+});
+
+</script>
+<iframe src="base.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent-1.html
new file mode 100644
index 000000000..4f239dad1
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent-1.html
@@ -0,0 +1,2 @@
+<!doctype html>
+<iframe src="beforeunload-on-navigation-of-parent-2.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent-2.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent-2.html
new file mode 100644
index 000000000..a34b182e7
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent-2.html
@@ -0,0 +1,4 @@
+<!doctype html>
+<script>
+addEventListener("beforeunload", function() {parent.parent.beforeunload_fired=true}, false)
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent.html
new file mode 100644
index 000000000..96d49567f
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/beforeunload-on-navigation-of-parent.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<title>beforeunload in iframe on navigation of parent</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+beforeunload_fired = false;
+var t = async_test();
+
+var base_count = 0;
+
+onload = function() {setTimeout(t.step_func(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+  iframe.onload = t.step_func(function() {
+    iframe.onload = null;
+    history.go(-1);
+  });
+
+  iframe.src = "beforeunload-on-navigation-of-parent-1.html";
+}), 100)};
+
+base_show = t.step_func(function() {
+  base_count++;
+  if (base_count > 1) {
+    assert_true(beforeunload_fired);
+    t.done();
+  }
+});
+
+</script>
+<iframe src="base.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/contains.json b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/contains.json
new file mode 100644
index 000000000..4ebca09bf
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/contains.json
@@ -0,0 +1,6 @@
+[
+    {
+        "id": "event-definition",
+        "original_id": "event-definition"
+    }
+]
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload-1.html
new file mode 100644
index 000000000..b96234fba
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload-1.html
@@ -0,0 +1,10 @@
+<!doctype html>
+004-1
+<script>
+addEventListener("beforeunload",
+function() {
+if (top.counter++ < 999) {
+  location = "navigation-within-beforeunload-2.html?" + top.counter;
+}
+}, false);
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload-2.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload-2.html
new file mode 100644
index 000000000..2dceaa6d6
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload-2.html
@@ -0,0 +1,4 @@
+<!doctype html>
+<script>
+document.write(location)
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload.html
new file mode 100644
index 000000000..d7131b00d
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/navigation-within-beforeunload.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<title>Triggering navigation from within beforeunload event</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+beforeunload_fired = false;
+var t = async_test();
+
+var base_count = 0;
+var counter = 0;
+
+onload = function() {setTimeout(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+
+  iframe.onload = function() {
+                    setTimeout(function() {iframe.contentWindow.location="navigation-within-beforeunload-2.html";}, 100);
+                    iframe.onload = t.step_func(function() {assert_equals(counter, 1000); t.done()});
+                  };
+
+  iframe.src = "navigation-within-beforeunload-1.html?" + Math.random();
+
+}, 100)};
+
+</script>
+<iframe src="base.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/pagehide-on-history-forward-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/pagehide-on-history-forward-1.html
new file mode 100644
index 000000000..a60c20ed8
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/pagehide-on-history-forward-1.html
@@ -0,0 +1,2 @@
+<!doctype html>
+filler text
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/pagehide-on-history-forward.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/pagehide-on-history-forward.html
new file mode 100644
index 000000000..5e64b5ec6
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/pagehide-on-history-forward.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<title>pagehide event fires on history navigation forward</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+
+onload = function() {setTimeout(t.step_func(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+
+  iframe.src = "pagehide-on-history-forward-1.html";
+}), 100)};
+
+base_hide = t.step_func(function() {
+  t.done()
+});
+</script>
+<iframe src="base.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001-1.html
new file mode 100644
index 000000000..b68afc49e
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001-1.html
@@ -0,0 +1,10 @@
+<script>
+addEventListener("beforeunload",
+function() {
+   parent.events.push("beforeunload");
+}, false);
+parent.events.push("before src change");
+
+location.href = "001-2.html&pipe=trickle(d2)";
+parent.events.push("after src change");
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001-2.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001-2.html
new file mode 100644
index 000000000..9da0f9395
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001-2.html
@@ -0,0 +1 @@
+001-2
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001.html
new file mode 100644
index 000000000..109dcc139
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/001.html
@@ -0,0 +1,14 @@
+<!doctype html>
+<title>beforeunload event order</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+events = [];
+onload = t.step_func(function() {
+  assert_array_equals(events, ["before src change", "beforeunload", "after src change"]);
+  t.done();
+})
+</script>
+<iframe src="001-1.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/002-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/002-1.html
new file mode 100644
index 000000000..c5f57375d
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/002-1.html
@@ -0,0 +1,7 @@
+<script>
+addEventListsner("beforeunload", parent.t.step_func(
+function(e) {
+  parent.do_test(e);
+}, false);
+location.href = "001-2.html&pipe=trickle(d2)";
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/002.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/002.html
new file mode 100644
index 000000000..d8f4fc60a
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/002.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<title>beforeunload event properties</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+
+function do_test(e) {
+  assert_equals(e.type, "beforeunload");
+  assert_false(e.bubbles, "bubbles");
+  assert_true(e.cancelable, "bubbles");
+  assert_equals(e.returnValue, "");
+}
+
+onload = t.step_func(function() {
+  t.done();
+})
+</script>
+<iframe src="001-1.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/003.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/003.html
new file mode 100644
index 000000000..5683f1b12
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/003.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<title>beforeunload event in child frame for parent navigation</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+
+function do_test(e) {
+  assert_equals(e.type, "beforeunload");
+  assert_false(e.bubbles, "bubbles");
+  assert_true(e.cancelable, "bubbles");
+  assert_equals(e.returnValue, "");
+}
+
+onload = t.step_func(function() {
+  t.done();
+})
+</script>
+<iframe src="001-1.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/MANIFEST b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/MANIFEST
new file mode 100644
index 000000000..8d93279a4
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/MANIFEST
@@ -0,0 +1,14 @@
+support 001-1.html
+support 001-2.html
+001.html
+support 002-1.html
+002.html
+003.html
+manual manual-001.html
+manual manual-002.html
+manual manual-003.html
+manual manual-004.html
+manual manual-005.html
+manual manual-006.html
+support next.html
+support slice-and-dice.php
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-001.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-001.html
new file mode 100644
index 000000000..3b7ef74b7
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-001.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<title>Prompt when beforeunload is canceled</title>
+<script>
+addEventListener("beforeunload",
+function(e) {e.preventDefault()},
+false);
+</script>
+<p>When clicking the link below, you should get a prompt asking if you want to unload the document</p>
+<a href="next.html">Click here</a>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-002.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-002.html
new file mode 100644
index 000000000..7be8a3301
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-002.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<title>Prompt when beforeunload has returnValue set</title>
+<script>
+addEventListener("beforeunload",
+function(e) {e.returnValue = "PASS if you see this"},
+false);
+</script>
+<p>When clicking the link below, you should get a prompt asking if you want to unload the document</p>
+<a href="next.html">Click here</a>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-003.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-003.html
new file mode 100644
index 000000000..ff72b6705
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-003.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<title>Prompt when beforeunload is canceled</title>
+<script>
+addEventListener("beforeunload",
+function(e) {e.preventDefault()},
+false);
+</script>
+<p>When clicking the button below, you should get a prompt asking if you want to unload the document</p>
+<form method="get" action="next.html">
+<input type="submit" value="Click here">
+</form>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-004.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-004.html
new file mode 100644
index 000000000..a4d296892
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-004.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<title>Prompt on form submit</title>
+<script>
+addEventListener("beforeunload",
+function(e) {e.preventDefault()},
+false);
+</script>
+<p>When clicking the button below, you should get a prompt asking if you want to unload the document</p>
+<form method="get" action="next.html">
+<input type="submit" value="Click here">
+</form>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-005.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-005.html
new file mode 100644
index 000000000..71ff0a241
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-005.html
@@ -0,0 +1,22 @@
+<!doctype html>
+<title>Event loop pause for beforeunload</title>
+<script>
+var counter = 0;
+
+onload = function count() {
+  document.getElementById("log").textContent = counter++
+  setTimeout(count, 200);
+}
+
+addEventListener("beforeunload",
+function(e) {
+  e.preventDefault()
+},
+false);
+</script>
+<ul>
+<li>Click on the link below. When the prompt appears the counter at the bottom must stop incrementing.
+<li>Opt not to leave the page. The counter must start incrementing again
+</ul>
+<p><a href="">Click here</a>
+<div id="log"></div>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-006.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-006.html
new file mode 100644
index 000000000..dae0340ad
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/manual-006.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<title>Prompt when beforeunload returns string value</title>
+<script>
+addEventListener("beforeunload",
+function(e) {return "PASS if you see this"},
+false);
+</script>
+<p>When clicking the link below, you should get a prompt asking if you want to unload the document</p>
+<a href="next.html">Click here</a>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/next.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/next.html
new file mode 100644
index 000000000..38e7cdd5e
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/prompt/next.html
@@ -0,0 +1,2 @@
+<!doctype html>
+<p>You should have seen a prompt asking you to unload the previous document
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001-1.html
new file mode 100644
index 000000000..72f41ae3e
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001-1.html
@@ -0,0 +1,23 @@
+<!DOCTYPE HTML>
+<script>
+ t = opener.t;
+ do_test = t.step(function () {
+   localStorage.test6564729 += '4';
+   var d = document;
+   var e = document.open(); // has no effect (ignore-opens-during-unload > 0)
+   localStorage.test6564729 += (e == d) ? '5' : 'A [' + e + '] ';
+   document.write('FAIL - document.write executed and blocked navigation!'); // has no effect (ignore-opens-during-unload > 0)
+   localStorage.test6564729 += document.body.textContent.match('FAIL') ? 'B' : '6';
+   document.close(); // has no effect (no script-created parser)
+   localStorage.test6564729 += '7';
+ })
+onload = t.step_func(function() {
+  localStorage.test6564729 = '0';
+  setTimeout(t.step_func(function() {document.links[0].click()}));
+});
+</script>
+<body onbeforeunload="localStorage.test6564729 += '1'"
+      onpagehide="localStorage.test6564729 += '3'"
+      onunload="do_test()">
+<p><a href="001a.html">Follow this link to run the test.</a>
+<p><iframe src="001b.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001a.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001a.html
new file mode 100644
index 000000000..36d4188b9
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001a.html
@@ -0,0 +1,7 @@
+<!DOCTYPE HTML>
+<script>
+opener.t.step(function() {
+ opener.assert_equals(localStorage.test6564729, '0123456789');
+ opener.t.done();
+});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001b.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001b.html
new file mode 100644
index 000000000..eaafc371a
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/001b.html
@@ -0,0 +1,5 @@
+<!DOCTYPE HTML>
+<body onbeforeunload="localStorage.test6564729 += '2'"
+      onpagehide="localStorage.test6564729 += '8'"
+      onunload="localStorage.test6564729 += '9'">
+<p>Inner frame
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002-1.html
new file mode 100644
index 000000000..0e6f7d967
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002-1.html
@@ -0,0 +1,28 @@
+<!DOCTYPE HTML>
+<script>
+ var t = opener.t;
+
+ var do_test = t.step_func(function() {
+   localStorage.test6564729 += '1';
+   var d = document;
+   var e = document.open(); // unload triggered here - beforeunload 2, 3 in 002b; pagehide 4, unload 5, pagehide 6 in 002b, unload 7 in 002b
+   localStorage.test6564729 += (e == d) ? '8' : 'X';
+   var s = 'FAIL if you see this | ' + localStorage.test6564729;
+   document.write(s);
+   localStorage.test6564729 += document.body.textContent == s ? '9' : 'x';
+   document.close();
+   localStorage.test6564729 += 'Z';
+   document.body.textContent += ' // ' + localStorage.test6564729;
+   location = '002a.html'; // unload triggers again here, but they're not registered event listeners any more
+ });
+
+onload = t.step_func(function() {
+  localStorage.test6564729 = '0';
+  setTimeout(function() {document.getElementsByTagName("input")[0].click()}, 100);
+});
+</script>
+<body onbeforeunload="localStorage.test6564729 += '2'"
+      onpagehide="localStorage.test6564729 += '4'"
+      onunload="localStorage.test6564729 += '5'">
+<input type=button value="Activate this button to run the test" onclick="do_test()">
+<p><iframe src="002b.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002a.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002a.html
new file mode 100644
index 000000000..d11f67086
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002a.html
@@ -0,0 +1,7 @@
+<!DOCTYPE HTML>
+<script>
+ opener.t.step(function() {
+   opener.assert_equals(localStorage.test6564729, '0123456789Z');
+   opener.t.done();
+ });
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002b.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002b.html
new file mode 100644
index 000000000..d08a7a8ad
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/002b.html
@@ -0,0 +1,5 @@
+<!DOCTYPE HTML>
+<body onbeforeunload="localStorage.test6564729 += '3'"
+      onpagehide="localStorage.test6564729 += '6'"
+      onunload="localStorage.test6564729 += '7'">
+<p>Inner frame
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003-1.html
new file mode 100644
index 000000000..b3a4754b8
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003-1.html
@@ -0,0 +1,23 @@
+<!DOCTYPE HTML>
+<script>
+ var t = opener.t;
+ var do_test = t.step_func(function() {
+   localStorage.test6564729 += '1';
+   var d = document;
+   var e = document.open(); // has no effect (ignore-opens-during-unload > 0 because we're in beforeunload)
+   localStorage.test6564729 += (e == d) ? '2' : 'A [' + e + '] ';
+   document.write('FAIL - document.write executed and blocked navigation!'); // has no effect (ignore-opens-during-unload > 0)
+   localStorage.test6564729 += document.body.textContent.match('FAIL') ? 'B' : '3';
+   document.close(); // has no effect (no script-created parser)
+   localStorage.test6564729 += '4';
+ })
+
+ onload=t.step_func(function() {localStorage.test6564729 = '0'; setTimeout(t.step_func(function() {document.links[0].click()}), 100)})
+
+</script>
+<body
+      onbeforeunload="do_test()"
+      onpagehide="localStorage.test6564729 += '6'"
+      onunload="localStorage.test6564729 += '7'">
+<p><a href="003a.html">Follow this link to run the test.</a>
+<p><iframe src="003b.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003a.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003a.html
new file mode 100644
index 000000000..5393fa221
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003a.html
@@ -0,0 +1,8 @@
+<!DOCTYPE HTML>
+<p>FAIL</p>
+<script>
+opener.t.step(function() {
+  opener.assert_equals(localStorage.test6564729, '0123456789')
+  opener.t.done();
+})
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003b.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003b.html
new file mode 100644
index 000000000..c8f1917b8
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/003b.html
@@ -0,0 +1,5 @@
+<!DOCTYPE HTML>
+<body onbeforeunload="localStorage.test6564729 += '5'"
+      onpagehide="localStorage.test6564729 += '8'"
+      onunload="localStorage.test6564729 += '9'">
+<p>Inner frame
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004-1.html
new file mode 100644
index 000000000..06aba08af
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004-1.html
@@ -0,0 +1,25 @@
+<!DOCTYPE HTML>
+<script>
+ var t = opener.t;
+ var do_test = t.step_func(function() {
+   localStorage.test6564729 += 'B';
+   var d = document;
+   var e = document.open(); // unload triggered here - beforeunload C, D in 004b; pagehide E, unload F, pagehide G in 004b, unload HIJK in 004b
+   localStorage.test6564729 += (e == d) ? 'L' : 'Y';
+   var s = 'FAIL if you see this | ' + localStorage.test6564729;
+   document.write(s);
+   localStorage.test6564729 += document.body.textContent == s ? 'M' : 'y';
+   document.close();
+   localStorage.test6564729 += 'N';
+   location = '004a.html'; // unload triggers again here, but they're not registered event listeners any more
+ })
+onload = t.step_func(function() {
+  localStorage.test6564729 = 'A';
+  setTimeout(t.step_func(function() {document.getElementsByTagName("input")[0].click()}), 100);
+})
+</script>
+<body onbeforeunload="localStorage.test6564729 += 'C'"
+      onpagehide="localStorage.test6564729 += 'E'"
+      onunload="localStorage.test6564729 += 'F'">
+<input type=button value="Activate this button to run the test" onclick="do_test()">
+<p><iframe src="004b.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004a.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004a.html
new file mode 100644
index 000000000..117e2b94a
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004a.html
@@ -0,0 +1,8 @@
+<!DOCTYPE HTML>
+<p>FAIL</p>
+<script>
+opener.t.step(function() {
+  opener.assert_equals(localStorage.test6564729, 'ABCDEFGHIJKLMN');
+  opener.t.done();
+});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004b.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004b.html
new file mode 100644
index 000000000..788937a0b
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/004b.html
@@ -0,0 +1,18 @@
+<!DOCTYPE HTML>
+<script>
+ function testRun() {
+   localStorage.test6564729 += 'H';
+   var d = parent.document;
+   var e = parent.document.open(); // no effect, since that document is already in unload
+   localStorage.test6564729 += (e == d) ? 'I' : 'X';
+   var s = 'FAIL';
+   document.write(s);
+   localStorage.test6564729 += document.body.textContent == s ? 'x' : 'J';
+   document.close();
+   localStorage.test6564729 += 'K';
+ }
+</script>
+<body onbeforeunload="localStorage.test6564729 += 'D'"
+      onpagehide="localStorage.test6564729 += 'G'"
+      onunload="testRun()">
+<p>Inner frame
\ No newline at end of file
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005-1.html
new file mode 100644
index 000000000..7b81a9f11
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005-1.html
@@ -0,0 +1,13 @@
+<!DOCTYPE HTML>
+<script>
+onload = opener.t.step_func(function() {
+  localStorage.test6564729 = '0'
+  setTimeout(opener.t.step_func(function() {document.links[0].click()}), 100);
+});
+</script>
+<body
+      onbeforeunload="localStorage.test6564729 += '1'"
+      onpagehide="localStorage.test6564729 += '3'"
+      onunload="localStorage.test6564729 += '4'">
+<p><a href="005a.html">Follow this link to run the test.</a>
+<p><iframe src="005b.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005a.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005a.html
new file mode 100644
index 000000000..5185d3b92
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005a.html
@@ -0,0 +1,8 @@
+<!DOCTYPE HTML>
+<p>FAIL</p>
+<script>
+opener.t.step(function() {
+ opener.assert_equals(localStorage.test6564729, '012345678')
+ opener.t.done();
+});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005b.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005b.html
new file mode 100644
index 000000000..476e8e38c
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/support/005b.html
@@ -0,0 +1,17 @@
+<!DOCTYPE HTML>
+<script>
+ var t = parent.opener.t;
+ var do_test = t.step_func(function () {
+   localStorage.test6564729 += '5';
+   var s = 'FAIL: document.open() has canceled the navigation (' + localStorage.test6564729 + ')';
+   parent.document.open();
+   parent.document.write(s);
+   parent.document.close();
+   localStorage.test6564729 += parent.document.body.textContent.match('FAIL') == s ? 'X' : '6';
+   localStorage.test6564729 += '7';
+ });
+</script>
+<body onbeforeunload="localStorage.test6564729 += '2'"
+      onpagehide="do_test()"
+      onunload="localStorage.test6564729 += '8'">
+<p>Inner frame
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001-1.html
new file mode 100644
index 000000000..74ba43954
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001-1.html
@@ -0,0 +1,4 @@
+<!doctype html>
+<script>
+addEventListener("pagehide", parent.t.step_func(function() {parent.pagehide_fired = true}), false);
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001-2.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001-2.html
new file mode 100644
index 000000000..90e28ab7f
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001-2.html
@@ -0,0 +1,2 @@
+<!doctype html>
+Filler
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001.html
new file mode 100644
index 000000000..444a2770c
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/001.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<title>pagehide event on unload</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+pagehide_fired = false;
+var t = async_test();
+
+onload = function() {setTimeout(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+
+  iframe.onload = function() {
+                    setTimeout(function() {
+                                 iframe.contentWindow.location="001-2.html";
+                               }, 100);
+                    iframe.onload = t.step_func(function() {assert_true(pagehide_fired); t.done()});
+                  };
+
+  iframe.src = "001-1.html?" + Math.random();
+
+}, 100)};
+
+</script>
+<iframe></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/002-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/002-1.html
new file mode 100644
index 000000000..fd8e2b726
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/002-1.html
@@ -0,0 +1,4 @@
+<!doctype html>
+<script>
+addEventListener("pagehide", parent.t.step_func(parent.do_test()), false);
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/002.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/002.html
new file mode 100644
index 000000000..3fb07e484
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/002.html
@@ -0,0 +1,33 @@
+<!doctype html>
+<title>pagehide event properties</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+
+onload = function() {setTimeout(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+
+  iframe.onload = function() {
+                    setTimeout(function() {
+                                 iframe.contentWindow.location="001-2.html";
+                               }, 100);
+                    iframe.onload = t.step_func(function() {t.done()});
+                  };
+
+  function do_test(e) {
+    assert_equals(e.type, "pagehide");
+    assert_equals(e.target, iframe.contentDocument);
+    assert_equals(e.currentTarget, iframe.contentWindow);
+    assert_false(e.bubbles, "bubbles");
+    assert_false(e.cancelable, "cancelable");
+    assert_true(e.persisted, "persisted");
+  }
+
+  iframe.src = "002-1.html?" + Math.random();
+
+}, 100)};
+
+</script>
+<iframe></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/003-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/003-1.html
new file mode 100644
index 000000000..9838c7945
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/003-1.html
@@ -0,0 +1,4 @@
+<!doctype html>
+<script>
+addEventListener("unload", parent.t.step_func(function(e) {parent.do_test(e)}), false);
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/003.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/003.html
new file mode 100644
index 000000000..97821be48
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/003.html
@@ -0,0 +1,33 @@
+<!doctype html>
+<title>unload event properties</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+var do_test;
+
+onload = function() {setTimeout(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+
+  iframe.onload = function() {
+                    setTimeout(function() {
+                                 iframe.contentWindow.location="002-2.html";
+                               }, 100);
+                    iframe.onload = t.step_func(function() {t.done()});
+                  };
+
+  do_test = function(e) {
+    assert_equals(e.type, "unload");
+    assert_equals(e.target, iframe.contentDocument);
+    assert_equals(e.currentTarget, iframe.contentWindow);
+    assert_false(e.bubbles, "bubbles");
+    assert_false(e.cancelable, "cancelable");
+  }
+
+  iframe.src = "003-1.html?" + Math.random();
+
+}, 100)};
+
+</script>
+<iframe></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004-1.html
new file mode 100644
index 000000000..5d0497556
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004-1.html
@@ -0,0 +1,5 @@
+<!doctype html>
+<script>
+addEventListener("pagehide", function() {parent.events.push("pagehide"); setTimeout(function() {parent.events.push("timeout")}, 0)}, false);
+addEventListener("unload", function() {parent.events.push("unload")}, false);
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004.html
new file mode 100644
index 000000000..301baa3b8
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/004.html
@@ -0,0 +1,28 @@
+<!doctype html>
+<title>pagehide / unload event order</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+
+var events = [];
+
+onload = function() {setTimeout(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+
+  iframe.onload = function() {
+                    setTimeout(function() {
+                                 iframe.contentWindow.location="001-2.html";
+                               }, 100);
+                    iframe.onload = t.step_func(function() {
+                                                  assert_array_equals(events, ["pagehide", "unload"])
+                                                  t.done()});
+                  };
+
+  iframe.src = "004-1.html?" + Math.random();
+
+}, 100)};
+
+</script>
+<iframe></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006-1.html
new file mode 100644
index 000000000..8d2659623
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006-1.html
@@ -0,0 +1,20 @@
+<!doctype html>
+006-1
+<script>
+onpagehide = function() {
+  onpagehide = null;
+  setTimeout(function() {
+               parent.t.done()
+             }, 1000);
+}
+onload = function() {
+  if (!parent.loaded) {
+    parent.loaded = true;
+    setTimeout(parent.t.step_func(
+       function() {
+         location="006-2.html?" + Math.random();
+       }
+    ), 100);
+  }
+}
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006-2.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006-2.html
new file mode 100644
index 000000000..52365e55d
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006-2.html
@@ -0,0 +1,5 @@
+<!doctype html>
+006-2
+<script>
+onload = function() {setTimeout(parent.t.step_func(function() {history.go(-1)}), 100)}
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006.html
new file mode 100644
index 000000000..c9e4d68a1
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/006.html
@@ -0,0 +1,18 @@
+<!doctype html>
+<title>salvagable state of document after setting pagehide listener</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test();
+
+var loaded = false;
+
+onload = function() {setTimeout(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+  onload = null;
+  iframe.src="006-1.html?" + Math.random();
+}, 100)};
+
+</script>
+<iframe></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007-1.html
new file mode 100644
index 000000000..ed19f4498
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007-1.html
@@ -0,0 +1,21 @@
+<!doctype html>
+007-1
+<script>
+onunload = function() {
+  onunload = null;
+  parent.unload_fired = true;
+  setTimeout(function() {
+               parent.timeout_fired = true;
+             }, 100);
+}
+onload = function() {
+  if (!parent.loaded) {
+    parent.loaded = true;
+    setTimeout(parent.t.step_func(
+       function() {
+         location="007-2.html?" + Math.random();
+       }
+    ), 100);
+  }
+}
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007-2.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007-2.html
new file mode 100644
index 000000000..f74cd1e67
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007-2.html
@@ -0,0 +1,5 @@
+<!doctype html>
+007-2
+<script>
+onload = function() {setTimeout(parent.t.step_func(function() {parent.start_test(); history.go(-1)}), 100)}
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007.html
new file mode 100644
index 000000000..0d5b72e0f
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/007.html
@@ -0,0 +1,28 @@
+<!doctype html>
+<title>salvagable state of document after setting unload listener</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var t = async_test(undefined, {timeout:2000});
+
+var loaded = false;
+var unload_fired = false;
+var timeout_fired = false;
+
+function start_test() {
+  setTimeout(t.step_func(function() {
+                           assert_true(unload_fired);
+                           assert_false(timeout_fired);
+                           t.done()
+                         }), 1000);
+}
+
+onload = function() {setTimeout(function() {
+  var iframe = document.getElementsByTagName("iframe")[0]
+  onload = null;
+  iframe.src="007-1.html?" + Math.random();
+}, 100)};
+
+</script>
+<iframe></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/008-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/008-1.html
new file mode 100644
index 000000000..29de29c91
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/008-1.html
@@ -0,0 +1,4 @@
+<!doctype html>
+<script>
+onpagehide = parent.t.step_func(function() {parent.t.done()});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/008.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/008.html
new file mode 100644
index 000000000..015507d81
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/008.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<title>pagehide IDL attribute</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var iframe;
+var t = async_test();
+onload = function() {
+  setTimeout(function() {
+    var iframe = document.getElementsByTagName("iframe")[0];
+    iframe.src="about:blank";
+  }, 100)
+};
+</script>
+<iframe src="008-1.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/009-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/009-1.html
new file mode 100644
index 000000000..d69a05914
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/009-1.html
@@ -0,0 +1,4 @@
+<!doctype html>
+<script>
+onunload = parent.t.step_func(function() {parent.t.done()});
+</script>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/009.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/009.html
new file mode 100644
index 000000000..0e93e0470
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/009.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<title>unload IDL attribute</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+var iframe;
+var t = async_test();
+onload = function() {
+  setTimeout(function() {
+    var iframe = document.getElementsByTagName("iframe")[0];
+    iframe.src="about:blank";
+  }, 100)
+}
+</script>
+<iframe src="009-1.html"></iframe>
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/MANIFEST b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/MANIFEST
new file mode 100644
index 000000000..637d35cf3
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/MANIFEST
@@ -0,0 +1,21 @@
+support 001-1.html
+support 001-2.html
+001.html
+support 002-1.html
+002.html
+support 003-1.html
+003.html
+support 004-1.html
+004.html
+support 006-1.html
+support 006-2.html
+006.html
+support 007-1.html
+support 007-2.html
+007.html
+support 008-1.html
+008.html
+support 009-1.html
+009.html
+manual manual-001-1.html
+manual manual-001.html
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/manual-001-1.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/manual-001-1.html
new file mode 100644
index 000000000..3da0a0de3
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/manual-001-1.html
@@ -0,0 +1,2 @@
+<!doctype html>
+<p>Now go back. PASS should be displayed after a short pause
diff --git a/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/manual-001.html b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/manual-001.html
new file mode 100644
index 000000000..6d817a111
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/browsing-the-web/unloading-documents/unload/manual-001.html
@@ -0,0 +1,5 @@
+<!doctype html>
+<title>Document salvagable state after setting pagehide handler</title>
+<script>onpagehide = function() {setTimeout(function(){document.body.innerHTML = "PASS"}, 100)}</script>
+<p>Click the link below then navigate back to this page. Shortly after returning you should see the text "PASS"</p>
+<p><A href="manual-001-1.html">Click here</a>
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