Ensure frames are disabled and scripts are enabled before loading this page. Then enable frames. The red line should disappear.

<div>This line should disappear.</div> <script type="text/javascript"> test(2); </script>
This browser
Script did not execute.
Firefox 0.8+
Safari 1.2
Could not disable frames.
IE6
XHTML not supported.
Opera 7.50 Beta 1
Disabling frames did not affect test.