When going to http://bookbuilder.cast.org/, a JavaScript warning is printed when using a local debug build of WebKit r21161 with Safari 2.0.4 (419.3) on Mac OS X 10.4.9 (8P135). I haven't navigated through the site to determine where the text editor is used (or which one is used).
I checked the page in Webkit r30218. No javascript warning I've experienced. Is is visible without login?
False report :( I can see it now. So the bug is still not fixed.
The alert is still shown today with Safari 4 Public Beta.
David: I've checked the site with WebKit 4.0.4 (6531.21.10, r50918) and it seems that there are no JS alert on this page visible now. Could confirm it?
Verified that the warning no longer occurs.