Hi there.
I'm dealing with a fatal error for the user.

Users are able to upload files. Those files are captions for videos (.srt).
I have set a mimeTypes validation with value : "text/plain".

I'm not an expert of mimeType detection. But it seems to depend of the file content.
Inside the file, a problem is due to the word "double" caused problem. The mimeType has changed from "text/plain" to "text/x-c", which refers to "C++" file..

You can test with : https://gist.github.com/3349401

So, solutions that I have found :

• Remove the "double" word..
• Remove the mimeType detection
• Add a mimeType detection on "text/plain" and "text/x-c", but what about other "text/*" ?
• Check only the "first part" of the mimeType.

The latest solution seems to be the coolest one.
As you can see on wikipédia : http://en.wikipedia.org/wiki/Internet_media_type "A media type is composed of two or more parts: A type, a subtype, and zero or more optional parameters."

So, I would like to be able to check mimeTypes with value : "text/*".

This is a crappy case. Any clue are welcome.

Thomas.