<!DOCTYPE HTML> <html><head> <meta charset="utf-8"> <title>Testcase for bug 1031934</title> </head> <body> <table border="1"> <tbody style="visibility: collapse;"> </tbody> <tbody> <tr><td>Hello</td></tr> </tbody> <tbody style="visibility: collapse;"> </tbody> </table> <table border="1"> <tbody></tbody> <tbody> <tr><td>Hello</td></tr> </tbody> <tbody></tbody> </table> </body> </html>