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Gemasoft
Asked: 2020-01-27 09:04:15 +0800 CST 2020-01-27 09:04:15 +0800 CST

What is the correct contentType for JSON?

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I see that several can be used but I don't understand their differences or when I should use one or the other, for example:

    text/javascript
    text/x-javascript
    text/x-json
    application/json
    application/x-javascript
json

3 Answers

  1. Best Answer

    According to section 11 of RFC7159: The JavaScript Object Notation (JSON) Data Interchange Format , the correct one is application/json:

    11. IANA Considerations

   The MIME media type for JSON text is application/json.

   Type name: application

   Subtypename: json

    In the case of the others, the uses are as follows:

    • text/javascript. It's obsolete, don't use it
    • text/x-javascriptIt was an experimental content-type, it shouldn't be used either.
    • text/x-jsonAlso experimental. not use it
    • application/x-javascriptExperimental like the others with prefix x-. not use it

    It is also worth mentioning that an alternative that is not mentioned is application/javascript. This content-type should be used for JavaScript not to be confused with JSON .

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  2. As far as I know, if you're going to transmit JSON over an HTTP service, you should use the content type application/jsonand it's backed by the official internet protocol standard RFC 4627

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  3. For JSONpure it should be used application/jsonand for the case of JSONPit should be usedapplication/javascript

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