Search results
Results From The WOW.Com Content Network
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. A user agent may automatically redirect a request.
Initiates a request for cross-origin resource sharing with Origin (below). Access-Control-Request-Method: GET: Permanent: standard: Authorization: Authentication credentials for HTTP authentication. Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ== Permanent RFC 9110: Cache-Control
If a server responds to a POST or other non-idempotent request with a 303 See Other response and a value for the location header, the client is expected to obtain the resource mentioned in the location header using the GET method; to trigger a request to the target resource using the same method, the server is expected to provide a 307 ...
Since 1992, a new document was written to specify the evolution of the basic protocol towards its next full version. It supported both the simple request method of the 0.9 version and the full GET request that included the client HTTP version. This was the first of the many unofficial HTTP/1.0 drafts that preceded the final work on HTTP/1.0. [3]
For this reason, HTTP/1.1 (RFC 2616) added the new status codes 303 and 307 to disambiguate between the two behaviours, with 303 mandating the change of request type to GET, and 307 preserving the request type as originally sent. Despite the greater clarity provided by this disambiguation, the 302 code is still employed in web frameworks to ...
Unless the request method was HEAD, the entity should contain a small hypertext note with a hyperlink to the new URL(s). If the 301 status code is received in response to a request of any type other than GET or HEAD, the client must ask the user before redirecting.
Various alternatives exist to circumvent this security feature, including using JSONP, Cross-Origin Resource Sharing (CORS) or alternatives with plugins such as Flash or Silverlight (both now deprecated). Cross-origin XMLHttpRequest is specified in W3C's XMLHttpRequest Level 2 specification. [17] Internet Explorer did not implement CORS until ...
By checking the referrer, the server providing the new web page can see where the request originated. In the most common situation, this means that when a user clicks a hyperlink in a web browser , causing the browser to send a request to the server holding the destination web page, the request may include the Referer field, which indicates the ...