PHP 4.0 Bug #10070 Updated: incorrect ob_gzhandler implementation

ID: 10070 Updated by: avsm Reported By: mnot@akamai.com Old-Status: Open Status: Analyzed Bug Type: Zlib Related Assigned To: Comments: Applied a patch to add Vary: headers if we add a Content-Encoding: header. Regarding the browser compatibility with Deflate, I think we should just leave it like it is. _They_ break the RFC; encourage people to upgrade to modern, non-broken browsers instead ? Previous Comments: --------------------------------------------------------------------------- [2001-03-29 21:21:53] mnot@akamai.com ob_gzhandler doesn't appear to set a Vary: header on responses, which means that proxy caches could store a compressed version of the resource and serve it to clients which can't handle the encoding. This is very difficult to debug for Web sites, and should be fixed ASAP. For an example of the proper headers to send, see the PHP at: http://www.mnot.net/cgi_buffer/ Also, in my experience, some versions of MSIE don't handle deflate compession correctly, even though their Accept-Encoding claims they do. It might be better to avoid deflate altogether, as gzip support is pretty much the unwritten standard. Cheers, --------------------------------------------------------------------------- ATTENTION! Do NOT reply to this email! To reply, use the web interface found at http://bugs.php.net/?id=10070&edit=2