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The HTTP 406
Not Acceptable
client error response code indicates that a response matching the list of acceptable values defined in Accept-Charset
and Accept-Language
cannot be served.
In reality, this error is very rarely used: instead of responding using this error code that will be cryptic for the end user (and difficult to fix), servers ignore the relevant header and serve an actual page to the user. It is assumed that even if the user won't be completely happy, it will prefer this to an error code.
If a server returns such an error status, the body of the message should contain the list of the available representations of the resources, allowing to manually choose among them.
Status
406 Not Acceptable
Specifications
Specification | Title |
---|---|
RFC 7231, section 6.5.6: 406 Not Acceptable | Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Servo |
---|---|---|---|---|---|---|---|
Basic Support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Feature | Android | Chrome for Android | Edge Mobile | Firefox for Android | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic Support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |