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This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.
This can be due to a misconfiguration or intentional restrictions imposed by the server administrator. Blocked by firewall or security software: A 403 status code can occur if a firewall or security software blocks access to the resource. This may happen due to security policies, malware detection, or other security measures.
Requests is an HTTP client library for the Python programming language. [2] [3] Requests is one of the most downloaded Python libraries, [2] with over 300 million monthly downloads. [4] It maps the HTTP protocol onto Python's object-oriented semantics. Requests's design has inspired and been copied by HTTP client libraries for other programming ...
The RFC is specific that a 451 response does not indicate whether the resource exists but requests for it have been blocked, if the resource has been removed for legal reasons and no longer exists, or even if the resource has never existed, but any discussion of its topic has been legally forbidden (see injunction). [8]
Most requests that appear to be HTTP/0.9 are, in fact, badly constructed HTTP/1.x requests caused by a client failing to properly encode the request-target. Since 2016 many product managers and developers of user agents (browsers, etc.) and web servers have begun planning to gradually deprecate and dismiss support for HTTP/0.9 protocol, mainly ...
The request could not be understood due to malformed syntax. [1]: §21.4.1 401 Unauthorized The request requires user authentication. This response is issued by UASs and registrars. [1]: §21.4.2 402 Payment Required Reserved for future use. [1]: §21.4.3 403 Forbidden The server understood the request, but is refusing to fulfill it.
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The HTTP 402 response is accompanied by an entity body that provides additional information to the client regarding the payment requirements. This entity body can be in various formats, including HTML , XML , or JSON , and typically includes details such as the payment amount, payment methods accepted, and instructions on how to complete the ...