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-rw-r--r--docshell/test/navigation/file_bug1750973.html45
1 files changed, 45 insertions, 0 deletions
diff --git a/docshell/test/navigation/file_bug1750973.html b/docshell/test/navigation/file_bug1750973.html
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index 0000000000..28b2f995ae
--- /dev/null
+++ b/docshell/test/navigation/file_bug1750973.html
@@ -0,0 +1,45 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <meta charset="utf-8">
+ <script>
+ function test() {
+ history.scrollRestoration = "manual";
+ document.getElementById("initialfocus").focus();
+ history.pushState('data', '', '');
+ history.back();
+ }
+
+ window.onpopstate = function() {
+ window.onscroll = function() {
+ window.onscroll = null;
+ document.documentElement.style.display = "none";
+ // focus() triggers recreation of the nsIFrames without a reflow.
+ document.getElementById("focustarget").focus();
+ document.documentElement.style.display = "";
+ // Flush the layout.
+ document.documentElement.getBoundingClientRect();
+ opener.isnot(window.scrollY, 0, "The page should have been scrolled down(1)");
+ requestAnimationFrame(
+ function() {
+ // Extra timeout to ensure we're called after rAF has triggered a
+ // reflow.
+ setTimeout(function() {
+ opener.isnot(window.scrollY, 0, "The page should have been scrolled down(2)");
+ window.close();
+ opener.SimpleTest.finish();
+ });
+ });
+ }
+ window.scrollTo(0, 1000);
+ }
+ </script>
+</head>
+<body onload="setTimeout(test)">
+<div style="position: fixed;">
+ <input type="button" value="" id="initialfocus">
+ <input type="button" value="" id="focustarget">
+</div>
+<div style="border: 1px solid black; width: 100px; height: 9000px;"></div>
+</body>
+</html>