I wrote an article a while back digging into the details of an outage in a website I work with caused by CloudFlare, and while at some level the issue here was "CloudFlare didn't care enough to test their stack against popular browsers and then didn't have the in-house expertise to debug and correct issues that were later found", I frankly feel like this problem is pretty engrained into their business :/. If nothing else, the article might be interesting to some as it looks at how to even go about debugging complex interactions between web browser internals and overly clever JavaScript. http://www.saurik.com/id/14 "When 'Dumb Pipes' Get Too Smart"