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The HTTP2-Settings header field is a connection-specific header field that includes parameters that govern the HTTP/2 connection, provided in anticipation of the server accepting the request to upgrade. [19] [20] HTTP2-Settings: token64: Obsolete RFC 7540, 9113: If-Match
In basic HTTP authentication, a request contains a header field in the form of Authorization: Basic <credentials>, where <credentials> is the Base64 encoding of ID and password joined by a single colon :. It was originally implemented by Ari Luotonen at CERN in 1993 [1] and defined in the HTTP 1.0 specification in 1996. [2]
The Upgrade header field is an HTTP header field introduced in HTTP/1.1.In the exchange, the client begins by making a cleartext request, which is later upgraded to a newer HTTP protocol version or switched to a different protocol.
In computing, the User-Agent header is an HTTP header intended to identify the user agent responsible for making a given HTTP request. Whereas the character sequence User-Agent comprises the name of the header itself, the header value that a given user agent uses to identify itself is colloquially known as its user agent string .
The entity headers in the PATCH document are only applicable to the PATCH document and cannot be applied to the requested resource. [1] There is no standard format for the PATCH document and it is different for different types of resources. The server has to check whether the PATCH document received is appropriate for the requested resource. [1]
In computing, POST is a request method supported by HTTP used by the World Wide Web. By design, the POST request method requests that a web server accepts the data enclosed in the body of the request message, most likely for storing it. [1] It is often used when uploading a file or when submitting a completed web form.
From January 2008 to December 2012, if you bought shares in companies when John B. McCoy joined the board, and sold them when he left, you would have a -19.1 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
Unlike the other status codes above, these were not sent as the response status in the HTTP protocol, but as part of the "Warning" HTTP header. [56] [57] Since this "Warning" header is often neither sent by servers nor acknowledged by clients, this header and its codes were obsoleted by the HTTP Working Group in 2022 with RFC 9111. [58]