#38026 [NEW]: IE 6 and zlib.output_compression sometimes does not work

From: php at seven dot net dot nz Operating system: Windows XP PHP version: 5.1.4 PHP Bug Type: Zlib Related Bug description: IE 6 and zlib.output_compression sometimes does not work Description: ------------ Apache 2.0.56 or 2.2.2. Windows XP Pro. PHP 5.1.4. When browsing around a site in IE 6, occasionally a page will show up as blank. Oddly enough, the IE address bar will not even update to show the URL you are requesting. 1. The headers appear to be sent correctly. 2. Nothing untoward is reported in the error log (process crashes or segfaults). 3. Only affects IE 6 (and possibly earlier). No problems with IE 7 or Firefox. 4. Only happens when zlib.output_compression is on. 5. Only happens some of the time, but with all of the pages - between 20 and 60% of the time, depending on the machine I tested on. 6. Refreshing will always show the page correctly. 7. This has been verified by 10 distinct IE 6 clients. I realise this may not be enough information; let me know what you need and I'll try and get more data. -- Edit bug report at http://bugs.php.net/?id=38026&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=38026&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=38026&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=38026&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=38026&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=38026&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=38026&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=38026&r=needscript Try newer version: http://bugs.php.net/fix.php?id=38026&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=38026&r=support Expected behavior: http://bugs.php.net/fix.php?id=38026&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=38026&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=38026&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=38026&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=38026&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=38026&r=dst IIS Stability: http://bugs.php.net/fix.php?id=38026&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=38026&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=38026&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=38026&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=38026&r=mysqlcfg