<!DOCTYPE html> <html><head> <title>Testcase #2 for bug 370713</title> <script> function boom() { document.getElementById('tbody').appendChild(document.createElement('tr')); } window.addEventListener("load", boom, false); </script> </head> <body><table style="border-collapse:collapse"><tbody id="tbody"><tr><td></td></tr><tr></tr></tbody></table></body> </html>