417 Expectation Failed

4×× Client Error
417 Expectation Failed

The expectation given in the request's Expect header field1 could not be met by at least one of the inbound servers.

1 Expect RFC7231 Section 5.1.1
Source: RFC7231 Section 6.5.14

417 Code References

Rails HTTP Status Symbol :expectation_failed

Go HTTP Status Constant http.StatusExpectationFailed

Symfony HTTP Status Constant Response::HTTP_EXPECTATION_FAILED

Python2 HTTP Status Constant httplib.EXPECTATION_FAILED

Python3+ HTTP Status Constant http.client.EXPECTATION_FAILED

Python3.5+ HTTP Status Constant http.HTTPStatus.EXPECTATION_FAILED
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