417.md

set	code	title	references
4	417	Expectation Failed	Rails HTTP Status Symbol Go HTTP Status Constant Symfony HTTP Status Constant Python2 HTTP Status Constant Python3+ HTTP Status Constant Python3.5+ HTTP Status Constant :expectation_failed http.StatusExpectationFailed Response::HTTP_EXPECTATION_FAILED httplib.EXPECTATION_FAILED http.client.EXPECTATION_FAILED http.HTTPStatus.EXPECTATION_FAILED

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

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• ¹ Expect RFC7231 Section 5.1.1
• Source: RFC7231 Section 6.5.14