Make CKEditor work with Apache’s mod_pagespeed

I am using CKEditor as a part of a CMS used to drive one of my sites and have found out that CKEditor has problems parsing CSS and JS files with Apache’s mod_pagespeed enabled — the CKEditor isn’t being shown on the page at all (mod_pagespeed is an Apache module for rewriting web pages to reduce latency and bandwidth – a great thing for SEO).

The solution is to disallow mod_pagespeed on CSS and JS files called by CKEditor. Since CKEditor is usually used in the non-indexed back-end (CMS, etc.) this wouldn’t have an impact on the front end of the website which will happily continue serving static content processed by mod_pagespeed.
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