image/pjpeg and image/jpeg

Do you开发者_如何学Go know if I can send to browser the MIME type image/jpeg even if the image I am outputting is image/Pjpeg? Or are they different format?

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I believe most browsers wouldn't mind, except Internet Explorer which treats pjpeg files differently.

According to this conversation, you should accept both image/pjpeg and image/jpeg from your clients as upload mime types, but force the image/jpeg when serving downloads.