I'm running PHP through mod_fastcgi & mod_suexec, and I added
Header set X-UA-Compatible "IE=edge env=best-standards-support" to my .htaccess file. It works fine for static content, but the PHP files lack the header. How do I fix this problem?
Please note that such a header isn't saved into the files, rather into the HTTP response environment.
If the above doesn't work, try to grab the HTTP response with either