if they weren't then all JS and CSS files loaded through them would have their script tags in it.

i have had these types of issues a while back at coffee shops that try to inject ads, it was breaking my XML.

Oh, good point, I guess there's got to be some kind of semi-intelligent HTTP parsing going on in the background.

The point is that it is impossible to do this right. This system breaks software.

Unless it's NSN 6...

I bet some execs are looking at the stats for this and just going 'hmmm... what a coincidence that EVERYBODY is using the same browser!'