417 Expectation Failed

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

Go HTTP Status Constant http.StatusExpectationFailed
Python3+ HTTP Status Constant http.client.EXPECTATION_FAILED
Python3.5+ HTTP Status Constant http.HTTPStatus.EXPECTATION_FAILED
Rails HTTP Status Symbol :expectation_failed
Symfony HTTP Status Constant Response::HTTP_EXPECTATION_FAILED

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