HTTP 417 Expectation Failed

4xx – Client error

Status code417
Reason phraseExpectation Failed
Class4xx – Client error
ReferenceRFC 9110

Frequently asked questions

What does HTTP status 417 mean?

The server cannot meet the expectation in the Expect header.

Is 417 an error?

Yes, a client error (4xx): the problem lies in the request – for example a wrong URL, missing authentication or invalid data.

Where is HTTP 417 defined?

Status code 417 is specified in RFC 9110.

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