[XHR2] overrideMimeType in state UNSENT

It seems fairly common to call overrideMimeType before open(), but
should throw an InvalidStateError according to current XHR2 editors draft.

If you search (Google) for overrideMimeType a significant number of
first page results show calling of overrideMimeType before the open
call, so I imagine this will become increasingly common as people
copy+paste.

I don't think this is a particularly problematic thing to allow so can
we please update the spec to allow this?

-- 
Andrew Oakley

Received on Wednesday, 9 November 2011 10:36:28 UTC