<!DOCTYPE HTML> <html data-expando-prop="xyz"> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=885024 --> <head> <meta charset="utf-8"> <title>Test for Bug 885024</title> <script type="application/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=885024">Mozilla Bug 885024</a> <p id="display"></p> <div id="content" style="display: none"> </div> <img form="t"> <form id="form"> <div id="div"></div> </form> <pre id="test"> <script type="application/javascript"> var img = document.createElement('img'); img.setAttribute('id', 'img'); var div = document.getElementById('div'); div.appendChild(img); var form = document.getElementById('form'); ok(form, "form exists"); ok(form.img, "form.img exists"); var img2 = document.createElement('img'); img2.setAttribute('id', 'img2'); img2.setAttribute('form', 'blabla'); ok(form, "form exists2"); div.appendChild(img2); ok(form.img2, "form.img2 exists"); </script> </pre> </body> </html>