#23488 [NEW]: zlib output compression clobbers user-supplied Vary: header

From: m at mlcastle dot net Operating system: GNU/Linux 2.2.25 PHP version: 4.3.1 PHP Bug Type: Zlib Related Bug description: zlib output compression clobbers user-supplied Vary: header If zlib.output_compression is on, then it (sensibly) sends a Vary: Accept-Encoding header to the browser. However, if the user's script has sent its own Vary: header, then that header will get clobbered by zlib's. Better solutions would be to either: * let the user's header take preference, and caution the user to include Accept-Encoding in the custom one, or * magically combine the user's header and the zlib one. Refernece: RFC 2616 (HTTP/1.1 Spec), Section 14.44 Sample script: <?php ini_set('zlib.output_compression', 'on'); // do something with $_SERVER['HTTP_ACCEPT_LANGUAGE'] header('Vary: Accept-Language'); // output something ?> -- Edit bug report at http://bugs.php.net/?id=23488&edit=1 -- Try a CVS snapshot: http://bugs.php.net/fix.php?id=23488&r=trysnapshot Fixed in CVS: http://bugs.php.net/fix.php?id=23488&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=23488&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=23488&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=23488&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=23488&r=support Expected behavior: http://bugs.php.net/fix.php?id=23488&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=23488&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=23488&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=23488&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=23488&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=23488&r=dst IIS Stability: http://bugs.php.net/fix.php?id=23488&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=23488&r=gnused