The Http 401 Unauthorized client error response status code indicates that a request was not successful because it lacks valid authentication credentials for the requested resource.
This status code is sent with an Http WWW-Authenticate response header that contains information on the authentication scheme the server expects the client to include to make the request successfully....Русский 中文 (简体) 正體中文 (繁體) The HTTP 401 Unauthorized client error...status code is sent with an HTTP WWW-Authenticate response header...
The Http 409 Conflict client error response status code indicates a request conflict with the current state of the target resource....Русский 中文 (简体) 正體中文 (繁體) The HTTP 409 Conflict client error response...update the same resource. Status http 409 Conflict Examples Concurrent...
The Http Transfer-Encoding request and response header specifies the form of encoding used to transfer messages between nodes on the network....Português (do Brasil) 中文 (简体) The HTTP Transfer-Encoding request and...corresponding GET message. Warning: HTTP/2 disallows all uses of the...
The Http Content-Location representation header indicates an alternate location for the returned data.
It's main use is to indicate the URL of a resource transmitted as the result of content negotiation....Português (do Brasil) 中文 (简体) The HTTP Content-Location representation...Forbidden header name No Syntax http Content-Location: <url> Directives...
The Http Accept-Language request header indicates the natural language and locale that the client prefers.
The server uses content negotiation to select one of the proposals and informs the client of the choice with the Content-Language response header.
Browsers set required values for this header according to their active user interface language.
Users can also configure additional preferred languages through browser settings....Русский 中文 (简体) 正體中文 (繁體) The HTTP Accept-Language request header...the characters *,-.;= . Syntax http Accept-Language: <language>...
The Http Referrer-Policy response header controls how much referrer information (sent with the Referer header) should be included with requests.
Aside from the Http header, you can set this policy in HTML....Português (do Brasil) 中文 (简体) The HTTP Referrer-Policy response header...with requests. Aside from the HTTP header, you can set this policy...
The Http 410 Gone client error response status code indicates that the target resource is no longer available at the origin server and that this condition is likely to be permanent.
A 410 response is cacheable by default....Русский 中文 (简体) 正體中文 (繁體) The HTTP 410 Gone client error response...should be used instead. Status http 410 Gone Examples Requesting...
The Http Retry-After response header indicates how long the user agent should wait before making a follow-up request.
There are three main cases this header is used:...Brasil) Русский 中文 (简体) The HTTP Retry-After response header...header name No Syntax http Retry-After: <http-date> Retry-After:...
The Http 423 Locked client error response status code indicates that a resource is locked, meaning it can't be accessed.
Its response body should contain information in WebDAV's XML format....Deutsch 日本語 中文 (简体) 正體中文 (繁體) The HTTP 423 Locked client error response...generic 400 status code. Status http 423 Locked Examples WebDAV 423...