Simple demo of bug in prototype


prototype (v - prototype.js
extjs core (v2.2) - ext.js
prototype-bridge (v2.2) -ext.js


Bug appears in IE only and upon reloading this page. Source is the event "unload".
Make sure you have set "Display a notification about every script error" in Internet Options -> Advanced -> Browsing
Expected error is line 3862, "object required".


Sourcefiles are debug files and not compressed files. This lets anyone interested peek in the code for easier debugging.

The needed files is downloadable from here.
One of the bug ticket is registered here.