Lossless compression method to shorten string before base64 encoding to make it shorter?

Question

just built a small webapp for previewing HTML-documents that generates URL:s containing the HTML (and all inline CSS and Javascript) in base64 encoded data. Problem is, the

Answer 1

Check out this answer. It mentions functions for LZW compression/decompression (via http://jsolait.net/, specifically http://jsolait.net/browser/trunk/jsolait/lib/codecs.js).