Magento minimize varien js files -- is this ok?

I am minimizing my javascript files in my magento build to optimize page load time. I already minimized the skin/frontend/THEME/default/js files that were large开发者_JS百科, and next on my list are the varien javascript files.

My question is: Is it harmful to minimize the varien javascript files since they are technically part of Magento's core? I will obviously save backups of uncompressed files.

Thanks!

Minimizing the CSS and JS should have no side effects, that being said I have seen it screw up some of my style sheets before. Best approach is to enable each one by one in an testing environment and make sure everything looks and functions properly and look for any JS errors. Fooman speedster does the same thing that is built-in now with Magento.

If you encounter any issues disable the merging, your original files (JS/CSS) will be retained and are not modified, they are simply processed and combined into a new single file, so to answer your question it will not harm any core files by enabling such feature.