I use gzip on my website through the ob_start("ob_gzhandler"); function. It works well in all browsers except for one script when I use iframe to delete some items.

Still, everything works perfectly in Opera, but in IE, Firefox, Chrome, Safari the error something like this below appears (this error message is from Firefox):

Content Encoding Error

The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression.

I am positive the problem is gzip because when it's turned off it all works correctly in all browsers.

Shall I assume it's the browsers' bug (I tried many things like excluding gzip from some files etc., but it didn't help) and it will most likely be fixed in the other browsers soon? Opera appears to have the least bugs of all so that's why I'm hopeful :