What are all the possible values for HTTP “Content-Type” header?

What are all the possible values for HTTP “Content-Type” header?

You can find every content type here: http://www.iana.org/assignments/media-types/media-types.xhtml

The most common type are:

1. Type application

   application/EDI-X12
   application/EDIFACT
   application/javascript
   application/octet-stream
   application/ogg
   application/pdf
   application/xhtml+xml
   application/x-shockwave-flash
   application/json
   application/ld+json
   application/xml
   application/zip
   application/x-www-form-urlencoded
   

2. Type audio

   audio/mpeg
   audio/x-ms-wma
   audio/vnd.rn-realaudio
   audio/x-wav
   

3. Type image

   image/gif
   image/jpeg
   image/png
   image/tiff
   image/vnd.microsoft.icon
   image/x-icon
   image/vnd.djvu
   image/svg+xml
   

4. Type multipart

   multipart/mixed
   multipart/alternative
   multipart/related (using by MHTML (HTML mail).)
   multipart/form-data
   

5. Type text

   text/css
   text/csv
   text/html
   text/javascript (obsolete)
   text/plain
   text/xml
   

6. Type video

   video/mpeg
   video/mp4
   video/quicktime
   video/x-ms-wmv
   video/x-msvideo
   video/x-flv
   video/webm
   

7. Type vnd :

   application/vnd.oasis.opendocument.text
   application/vnd.oasis.opendocument.spreadsheet
   application/vnd.oasis.opendocument.presentation
   application/vnd.oasis.opendocument.graphics
   application/vnd.ms-excel
   application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
   application/vnd.ms-powerpoint
   application/vnd.openxmlformats-officedocument.presentationml.presentation
   application/msword
   application/vnd.openxmlformats-officedocument.wordprocessingml.document
   application/vnd.mozilla.xul+xml
   

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Type

The Content-Type entity header is used to indicate the media type of the resource.

In responses, a Content-Type header tells the client what the content type of the returned content actually is. Browsers will do MIME sniffing in some cases and will not necessarily follow the value of this header; to prevent this behavior, the header X-Content-Type-Options can be set to nosniff.

In requests, (such as POST or PUT), the client tells the server what type of data is actually sent.

It also needs to have a MIME type of its parsed value (ignoring parameters) of either application/x-www-form-urlencoded, multipart/form-data, or text/plain.