205 Reset Content

The 205 (Reset Content) status code indicates that the server has
fulfilled the request and desires that the user agent reset the
“document view”, which caused the request to be sent, to its original
state as received from the origin server.

This response is intended to support a common data entry use case
where the user receives content that supports data entry (a form,
notepad, canvas, etc.), enters or manipulates data in that space,

causes the entered data to be submitted in a request, and then the
data entry mechanism is reset for the next entry so that the user can
easily initiate another input action.

Since the 205 status code implies that no additional content will be
provided, a server MUST NOT generate a payload in a 205 response. In
other words, a server MUST do one of the following for a 205
response: a) indicate a zero-length body for the response by
including a Content-Length header field with a value of 0; b)
indicate a zero-length payload for the response by including a
Transfer-Encoding header field with a value of chunked and a message
body consisting of a single chunk of zero-length; or, c) close the
connection immediately after sending the blank line terminating the
header section.

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