<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=453521 --> <head> <title>Test for Bug 453521</title> <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=453521">Mozilla Bug 453521</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script class="testbody" type="text/javascript"> /** Test for Bug 453521 **/ var r = document.createRange(); r.setStart(document.documentElement, 0); r.setEnd(document.documentElement, 0); ok(r.extractContents() != null, "range.extractContents() shouldn't return null."); is(r.extractContents().nodeType, Node.DOCUMENT_FRAGMENT_NODE, "range.extractContents() should return a document fragment."); </script> </pre> </body> </html>