Visual post editor and CloudFlare

Took me a month to find out why on some of my computers in the office Visual editor on post add/edit page fails to load (it loads textarea but no buttons like bold italic etc and you can’t switch to HTML, and when you write in that half way loaded editor letters are white), it seems that Auto minify in CloudFlare makes it do just that, but not on every computer, so I guess my question is: Is there any way to fix this issue, because I’m very satisfied with CloudFlare and it drastically speeds up my site, but some of my authors can’t even add an article because the javascript on some computer fails to load… Please help.