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diff --git a/dom/tests/mochitest/bugs/test_bug876098.html b/dom/tests/mochitest/bugs/test_bug876098.html
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+++ b/dom/tests/mochitest/bugs/test_bug876098.html
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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=876098
+-->
+<head>
+ <meta charset="utf-8">
+ <title>Test for Bug 876098</title>
+ <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+ <script type="application/javascript">
+
+ /** Test for Bug 876098 **/
+ var div = document.createElement("div");
+ // count has to be large enough to trigger ion-compilation
+ var count = 2000;
+ // Separate function to make sure nothing weird we do block the ion-compile
+ (function() {
+ for (var i = 0; i < count; ++i) {
+ var span = document.createElement("span");
+ span.x = "foo";
+ div.appendChild(span);
+ }
+ })();
+
+ SpecialPowers.gc();
+
+ function allHaveProp() {
+ var kids = div.childNodes;
+ for (var i = 0; i < count; ++i) {
+ if (kids[i].x != "foo") {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ ok(allHaveProp(), "All spans should have the property we added");
+
+
+ </script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=876098">Mozilla Bug 876098</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+</pre>
+</body>
+</html>