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- <!DOCTYPE HTML>
- <html data-expando-prop="xyz">
- <!--
- https://bugzilla.mozilla.org/show_bug.cgi?id=874758
- -->
- <head>
- <meta charset="utf-8">
- <title>Test for Bug 874758</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 874758 **/
- Object.prototype.expandoProp = 5;
- is({}.expandoProp, 5, "Should see this on random objects");
- is(document.head.dataset.expandoProp, 5, "Should see this on dataset too");
- is(document.documentElement.dataset.expandoProp, "xyz",
- "But if the dataset has it, we should get it from there");
- </script>
- </head>
- <body>
- <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=874758">Mozilla Bug 874758</a>
- <p id="display"></p>
- <div id="content" style="display: none">
- </div>
- <pre id="test">
- </pre>
- </body>
- </html>
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