To assist a buddy am converting his problem here:
Before I had been including within the .htaccess
AddHandler application/x-httpd-php5s .php .js .css using the purpose that with similar PHP I possibly could produce the rules for Cache and Compression. Things I did exactly was customize the auto_prepend_file within the php.ini file, pointing it to some PHP file and thru there look into the variable that's send through the browsers within the header $_SERVER["HTTP_IF_MODIFIED_SINCE"].
When the dates were different, I'd answer having a header('HTTP/1.1 200 OK') which would send the JS or CSS files compressed. When the dates were exactly the same, i quickly would send a header('HTTP/1.1 304 Not Modified') and also the browser weren't required to download the JS or CSS files in asked.
For whatever reason, the
AddHandler application/x-httpd-php5s .php .js .css rule within the .htaccess eliminate
(I think about it for security reasons within the webhosting am in) and today the JS and CSS files aren't been up-to-date unless of course the consumer refreshes the web page F5
However ,, because the CSS or JS files aren't been up-to-date the customers don't know that they need to refresh the page to determine the alterations.
Can there be another simpler method of doing exactly the same procedure but with no AddHandler inshtaccess or perhaps a workaround with this.