Note: The existence of the 503 status code does not imply that a server must use it when becoming overloaded. This is not conclusive evidence, but is a good starting point. For example, including local annotation information about the resource might result in a superset of the metainformation known by the origin server. IETF. navigate here
There is no facility for re-sending a status code from an asynchronous operation such as this. Proxies MUST forward 1xx responses, unless the connection between the proxy and its client has been closed, or unless the proxy itself requested the generation of the 1xx response. (For example, Try clearing your cookies, browser cache and browsing history in your Web browser. What you can try: Retype the address. https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
Http Error Code
A first digit of 1, 2, or 3 represents a fully functional request. Wikipedia The user has sent too many requests in a given amount of time. User agents SHOULD display any included entity to the user. POST: The resource describing the result of the action is transmitted in the message body.
The temporary URI SHOULD be given by the Location field in the response.
General status code.
Go back to the previous page.
It means that a requested page doesn't exist.
The request might or might not be eventually acted upon, and may be disallowed when processing occurs. 203 Non-Authoritative Information (since HTTP/1.1) The server is a transforming proxy (e.g. Proxies MUST forward 1xx responses, unless the connection between the proxy and its client has been closed, or unless the proxy itself requested the generation of the 1xx response. (For example, Wikipedia Similar to 403 Forbidden, but specifically for use when authentication is possible but has failed or not yet been provided. Http 400 To resolve the issue, you may need to update the server.
Common causes are a server that is down for maintenance or that is overloaded. Http Code 302 An HTTP Extension Framework. If no Retry-After is given, the client SHOULD handle the response as it would for a 500 response. http://stackoverflow.com/questions/19671317/400-bad-request-http-error-code-meaning 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
Retrieved 16 October 2015. ^ Kowser; Patel, Amit. "REST response code for invalid data". Http 422 Clearing your cache is unlikely the fix for the majority of 400 bad request issues, but it's quick and easy and worth trying. While this is not a common fix, try troubleshooting Your browser sent a request that this server could not understand.""Bad Request - Invalid URL""HTTP Error 400 - Bad Request""Bad Request: Error 400""HTTP Error 400. If the client continues sending data to the server after the close, the server's TCP stack will send a reset packet to the client, which may erase the client's unacknowledged input
Http Code 302
However, this specification does not define any standard for such automatic selection. This is the appropriate response when the server does not recognize the request method and is not capable of supporting it for any resource. Http Error Code Retrieved October 11, 2009. ^ a b "Using token-based authentication". Http 404 Also, note that captive portals using this status code on an SSL or TLS connection (commonly, port 443) will generate a certificate error on the client.
Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and indicate whether it is a temporary or permanent condition. check over here Retrieved January 8, 2015. ^ "The HTTP status codes in IIS 7.0". Retrieved 2016-01-09. ^ "ngx_http_special_response.c". Initial aim for creating this code was using it for digital payment systems however this is not used currently. 403 Forbidden Client does not have access rights to the content so Http Status Codes Cheat Sheet
The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address. If a Content-Length header field is present in the response, its value MUST match the actual number of OCTETs transmitted in the message-body. - Date - ETag and/or Content-Location, if the If the HTTP client is Internet Explorer, and the Show Friendly HTTP Error Messages option is turned off, the error may resemble the following: Bad Request In these scenarios, IIS has his comment is here The client SHOULD NOT repeat the request without modifications. 10.4.2 401 Unauthorized The request requires user authentication.
The status codes 303 and 307 have been added for servers that wish to make unambiguously clear which kind of reaction is expected of the client. 10.3.4 303 See Other The Http 403 If the request that received this status code was the result of a user action, the request MUST NOT be repeated until it is requested by a separate user action. The client MAY repeat the request with a suitable Proxy-Authorization header field (section 14.34).
If the server does not wish to make this information available to the client, the status code 404 (Not Found) can be used instead. 10.4.5 404 Not Found The server has
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). Intended for use with rate limiting schemes. 431 Request Header Fields Too Large The 431 status code indicates that the server is unwilling to process the request because its header fields The phrases used are the standard wordings, but any human-readable alternative can be provided. Http 500 A cached but corrupt copy of the web page you're trying to access but find the 400 error could be the root of the problem.
Some servers may wish to simply refuse the connection. 10.5.5 504 Gateway Timeout The server, while acting as a gateway or proxy, did not receive a timely response from the upstream Depending upon the format and the capabilities of the user agent, selection of the most appropriate choice MAY be performed automatically. The action required MAY be carried out by the user agent without interaction with the user if and only if the method used in the second request is GET or HEAD. weblink The client SHOULD NOT repeat the request without modifications.
The client MAY repeat the request with a suitable Proxy-Authorization header field (section 14.34). If the request already included Authorization credentials, then the 401 response indicates that authorization has been refused for those credentials. Retrieved 16 October 2015. ^ "RFC2616 on status 416".