<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1025933 --> <head> <meta charset="utf-8"> <title>Test for Bug 1025933</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 1025933 **/ SimpleTest.waitForExplicitFinish(); function test() { var s = document.getElementById("host").createShadowRoot(); s.innerHTML = '<div style="width:100px;height:100px;background:red"></div>'; var el = s.firstElementChild; is(el.clientWidth, 100); is(el.clientHeight, 100); SimpleTest.finish(); } </script> </head> <body onload="test()"> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1025933">Mozilla Bug 1025933</a> <p id="display"></p> <div id="content"> <div id="host"></div> </div> <pre id="test"> </pre> </body> </html>