http 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