Remove query strings "?" from timthumb url

Hello,

While Doing a Site speed test I found that Resources with a "?" in the URL are not cached by some proxy caching servers and hence make page load slow.

Can any one please tell me How to remove that "?" from timthumb urls ? because I widely timthumb and that why it make a big impact on my site load speed.

Any help will be appreciated !!

 

I'm going to need an example, or even better an actual link.

 

@hmansfield
Thanks for your reply, here is the actual link check the "?"

http://www.digmlm.com/wp-content/themes/freshlife/includes/timthumb.php[B]?[/B]src=http://www.digmlm.com/wp-content/uploads/2012/02/Pinterest-Logo.png&h=140&w=140&zc=1

Code (markup):

 

I don't think you can remove it without recoding how the plug in works. The "?" seems to be the trigger that calls the specific image URL.
If you remove it, it definitely won't work. And you can't change it to something else.

What you need to do it rewrite your URLs using a combination of code changes and modifying your .htaccess file.

I've never tried it, so I can't vouch for it's effectiveness, but here is an article that explains it better with a possible solution:
http://revisedagain.com/2011/custom-rewrite-rules-with-wordpress-timthumb/