Maybe there's some utility in the Accept header as a signal of the capabilities of the browser/client. There's a nice discussion [1] on using the Accept header

Maybe there's some utility in the Accept header as a signal of the capabilities of the browser/client. There's a nice discussion [1] on using the Accept header to suss out whether to send the 'correct' but generally less-usable 'application/json' mime type or just send the blatantly wrong but working 'text/javascript' instead. Given a client with the capability, you should go ahead and send it the way the client prefers, right? [1] http://simonwillison.net/2009/Feb/6/json/ http://simonwillison.net/2009/Feb/6/json/