research : understanding MIME to understand web browser rendering process
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A media type (also known as a Multipurpose Internet Mail Extensions or MIME type) indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.
Structure of a MIME type
A simplest MIME type consists of a type and a subtype. A MIME type comprises these strings concatenated with a slash (/). No whitespace is allowed in a MIME type:
research : understanding MIME to understand web browser rendering process
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For example,
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