It always occurs in IE8, but works fine in chrome and opera.
I'm running XF 1.3.3 in localhost.
So, I tracked down the culprit by :
1. disabling my add-on listeners via config.php
2. reverting all my default style's templates
3. unchecking all my template-modifications
4. setting my memory_limit as large as possible in my config.php
5. restarting XAMPP
6. restarting my computer
but that error does still exist
What might have I missed for tracking down the culprit ? Any other "amunition" for me, please ?
Please tell me if this is an unresolved bug in XF 1.3.x, since this Xenforo.com site works fine in my IE8