I am using Wp-Optimize Premium, and it seems to work well. I excluded all the usual , community, participants, etc...from the cache. For minification, I excluded all the files from wpforo/assets/js. It looks like everything is working fine, but for one thing: Attachments. I have the plugin Advanced Attachments, excluded JS files there too from minification, but, even if I see the usual gray area when I drag a file, it does not attach and I can't see the image/file in the post. So, what other file (js, I guess), should I exclude from minification  ? Unless the problem come from something else, which I doubt as everything is fine if I don't minimize.