Did you manage to find a fix for this? I haven’t found anything yet.
False alarm. I realised I was swimming against the W3C current trying to force en to be UK english and /us to be US English.
It is a bit odd – you would think expected behaviour with HTML type ticked was to accept HTML, including all headers, not to add random tags.
I tried leaving HTML type unticked, and putting the MIME type headers in but that doesn’t work either.
Hmmmm…
