Sam Minnee 28bd939580 FIX: Ignore charset when checking mime types in LeftAndMain ajax responses.
This is partly a fix to #7574, although quite different from the work Ingo did on Content-length.  The text/json mime type occasionally gets a charset suffixed to it by the webserver, which broke everything.

A follow-on fix from this would be to get the PHP code to supply charsets more consistently, so that webservers don't have to make things up.

Additionally, the 2nd interpretation - which treats the response as text/html - should probably only happen if the response is text/html, and throw a more helpful error otherwise.
2012-09-30 16:32:22 +13:00
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