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Html Error 304 Code

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asked 6 years ago viewed 73019 times active 1 year ago Linked 24 HttpWebRequest.GetResponse throws WebException on HTTP 304 2 HttpListener - how do I send a WebException HTTP 304 “Not A client SHOULD detect infinite redirection loops, since such loops generate network traffic for each redirection. Response headers are as if the client had sent a HEAD request, but limited to only those headers which make sense in this context. It is not necessary to mark all permanently unavailable resources as "gone" or to keep the mark for any length of time -- that is left to the discretion of the http://domcached.com/http-status/html-404-code.html

Retrieved 16 October 2015. ^ "408". This response code allows the client to place preconditions on the current resource metainformation (header field data) and thus prevent the requested method from being applied to a resource other than The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place. If the server does not know, or has no facility to determine, whether or not the condition is permanent, the status code 404 (Not Found) SHOULD be used instead. https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html

Http Status Codes Cheat Sheet

Tools.ietf.org. This method exists primarily to allow the output of a POST-activated script to redirect the user agent to a selected resource. Retrieved 16 October 2015. ^ Meredith, Kevin. "HTTP Response for Unsuccessful Handling of Request". A code of 498 indicates an expired or otherwise invalid token.[67] 499 Token Required (Esri) Returned by ArcGIS for Server.

The response MUST include the following header fields: - Either a Content-Range header field (section 14.16) indicating the range included with this response, or a multipart/byteranges Content-Type including Content-Range fields for If the condition is temporary, the server SHOULD include a Retry- After header field to indicate that it is temporary and after what time the client MAY try again. 10.4.15 414 cat gives different error when opening non-existing file Handlers for checkboxes to select various map features Are there ethanol and methanol molecules with more than one hydroxyl group? Http Status Code "-1" Bad command or file name Halt and Catch Fire HTTP 418 Out of memory Lists List of HTTP status codes List of FTP server return codes Related Kill screen Spinning pinwheel

Forbidden 403 The request is for something forbidden. Since HTTP/1.0 did not define any 1xx status codes, servers MUST NOT send a 1xx response to an HTTP/1.0 client except under experimental conditions. Our really simple guide to web hosting (getting your web site and email addresses on the Internet using your own domain name). Retrieved 16 October 2015. ^ Goland, Yaronn; Whitehead, Jim; Faizi, Asad; Carter, Steve R.; Jensen, Del (February 1999).

When the browser puts something in its cache, it also stores the Last-Modified or ETag header from the server. Http 403 The response MUST include a WWW-Authenticate header field containing a challenge applicable to the requested resource. google.com/search?q=http%20caching –SLaks Jan 7 '14 at 18:01 add a comment| 1 Answer 1 active oldest votes up vote 121 down vote accepted That's not at all how it works. These status codes are applicable to any request method.

Http Code 302

Therefore, the note SHOULD contain the information necessary for a user to repeat the original request on the new URI. The request MUST have included a Range header field (section 14.35) indicating the desired range, and MAY have included an If-Range header field (section 14.27) to make the request conditional. Http Status Codes Cheat Sheet Unless it was a HEAD request, the response SHOULD include an entity containing a list of available entity characteristics and location(s) from which the user or user agent can choose the 304 Not Modified Cache Soldier mentioned in War Dogs Should immortal women have periods?

Unless otherwise stated, the status code is part of the HTTP/1.1 standard (RFC 7231).[1] The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes.[2] Microsoft IIS sometimes weblink Note: previous versions of this specification recommended a maximum of five redirections. Retrieved September 24, 2015. ^ "Introduction". If the server does not know, or has no facility to determine, whether or not the condition is permanent, the status code 404 (Not Found) SHOULD be used instead. Http Response Example

  1. Partial Information 203 When received in the response to a GET command, this indicates that the returned metainformation is not a definitive set of the object from a server with a
  2. This response is cacheable unless indicated otherwise. 10.3.2 301 Moved Permanently The requested resource has been assigned a new permanent URI and any future references to this resource SHOULD use one
  3. share|improve this answer answered Apr 8 '10 at 21:39 BalusC 692k21625232738 1 thanks - so are you saying then, what I should do is catch the exception still (right at
  4. Retrieved 16 October 2015. ^ a b c d Nottingham, M.; Fielding, R. (April 2012). "RFC 6585 – Additional HTTP Status Codes".
  5. A cache that does not support the Range and Content-Range headers MUST NOT cache 206 (Partial) responses. 10.3 Redirection 3xx This class of status code indicates that further action needs to
  6. If the server has a preferred choice of representation, it SHOULD include the specific URI for that representation in the Location field; user agents MAY use the Location field value for
  7. Internet Engineering Task Force.
  8. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition.

If a 304 response indicates an entity not currently cached, then the cache MUST disregard the response and repeat the request without the conditional. Retrieved 16 October 2015. ^ "RFC7235 on code 401". Microsoft. 2009. navigate here Retrieved 16 October 2015. ^ Delta encoding in HTTP.

If the server has a preferred choice of representation, it SHOULD include the specific URI for that representation in the Location field; user agents MAY use the Location field value for Http 404 No indication is given of whether the condition is temporary or permanent. Clients with link editing capabilities SHOULD delete references to the Request-URI after user approval.

The original intention was that this code might be used as part of some form of digital cash or micropayment scheme, but that has not happened, and this code is not

How is the Riemann zeta function zero at the negative even integers? It indicates defective programming by us or the developers of the Web server software. Accepted 202 The request has been accepted for processing, but the processing has not been completed. Http 500 Unexpected 1xx status responses MAY be ignored by a user agent.

Not the answer you're looking for? The 204 response MUST NOT include a message-body, and thus is always terminated by the first empty line after the header fields. 10.2.6 205 Reset Content The server has fulfilled the The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place. his comment is here Retrieved 16 October 2015. ^ "diff --git a/linkchecker.module b/linkchecker.module".

Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. The server is indicating that it is unable or unwilling to complete the request using the same major version as the client, as described in section 3.1, other than with this There are a myriad of reasons why this can occur but the most common are: server crash server maintenance server overload server maliciously being attacked a website has used up its https://tools.ietf.org/html/rfc3229.

If the client is sending data, a server implementation using TCP SHOULD be careful to ensure that the client acknowledges receipt of the packet(s) containing the response, before the server closes When received in response to a POST (or PUT/DELETE), the client should presume that the server has received the data and should issue a redirect with a separate GET message.[24] 304 The response MUST include the following header fields: - Either a Content-Range header field (section 14.16) indicating the range included with this response, or a multipart/byteranges Content-Type including Content-Range fields for User agents are encouraged to inspect the headers of an incoming response to determine if it is acceptable.

Google. 2015. Cloudflare. Iana.org. The newly created resource can be referenced by the URI(s) returned in the entity of the response, with the most specific URI for the resource given by a Location header field.

In contrast to how 302 was historically implemented, the request method is not allowed to be changed when reissuing the original request. Now you have to clean up after them by catching the exception every time you try to use If-Modified-Since. Why do we use the electron volt? Retrieved November 13, 2013. ^ "2.2.6 449 Retry With Status Code".

These response codes are applicable to any request method. 10.5.1 500 Internal Server Error The server encountered an unexpected condition which prevented it from fulfilling the request. 10.5.2 501 Not Implemented The entity returned with this response SHOULD include an indication of the request's current status and either a pointer to a status monitor or some estimate of when the user can RFC 2774. July 14, 2009.

Note: HTTP/1.1 servers are allowed to return responses which are not acceptable according to the accept headers sent in the request. There are no required headers for this class of status code. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s). Google Developers API uses this status if a particular developer has exceeded the daily limit on requests.[35] 403 Forbidden The request was a valid request, but the server is refusing to