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31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
---
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set: 4
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code: 421
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title: Misdirected Request
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references:
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"Rails HTTP Status Symbol": ":misdirected_request"
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---
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The 421 (Misdirected Request) status code indicates that the request was
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directed at a server that is not able to produce a response. This can be sent by
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a server that is not configured to produce responses for the combination of
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scheme and authority that are included in the request URI.
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Clients receiving a 421 (Misdirected Request) response from a server MAY retry
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the request -- whether the request method is idempotent or not -- over a
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different connection. This is possible if a connection is reused
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([RFC7540 Section 9.1.1][2]) or if an alternative service is selected
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[ALT-SVC][3].
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This status code MUST NOT be generated by proxies.
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A 421 response is cacheable by default, i.e., unless otherwise indicated by the
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method definition or explicit cache controls
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(see [Section 4.2.2 of RFC7234][4]).
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Source: [RFC7540 Section 9.1.2][1]
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[1]: <http://tools.ietf.org/html/rfc7540#section-9.1.2>
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[2]: <http://tools.ietf.org/html/rfc7540#section-9.1.1>
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[3]: <http://tools.ietf.org/html/rfc7540#ref-ALT-SVC>
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[4]: <http://tools.ietf.org/html/rfc7234#section-4.2.2> |