Squid blocking large files
 

I want to make squid not caching large files passing through.. I learned that I may use reply_body_max_size tag for blocking them. I tried with that:
acl all src 0.0.0.0/0.0.0.0
reply_body_max_size 2MB allow all
After that while loading a web page, it was cut OR if loading something bigger (not html, but jpg) I immediately get 'error - the reply size too big' from Squid. The think that doesn't fit is why the web page is cut. It coudn't be bigger than 2MB. :confused:
And the main question is: can I just pass large files without caching, and without blocking them? :)

Someone? :)