Http Error With Status Code 400
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response. 10.1 Informational 1xx This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. There are no required headers http status code 400 for this class of status code. Since HTTP/1.0 did not define any 1xx
Http Status Codes Cheat Sheet
status codes, servers MUST NOT send a 1xx response to an HTTP/1.0 client except under experimental conditions. A client MUST be
Http Response Example
prepared to accept one or more 1xx status responses prior to a regular response, even if the client does not expect a 100 (Continue) status message. Unexpected 1xx status responses MAY be ignored
Http Code 302
by a user agent. 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, if a proxy adds a "Expect: 100-continue" field when it forwards a request, then it need not forward the corresponding 100 (Continue) response(s).) 10.1.1 100 Continue The client SHOULD continue with its request. http 422 This interim response is used to inform the client that the initial part of the request has been received and has not yet been rejected by the server. The client SHOULD continue by sending the remainder of the request or, if the request has already been completed, ignore this response. The server MUST send a final response after the request has been completed. See section 8.2.3 for detailed discussion of the use and handling of this status code. 10.1.2 101 Switching Protocols The server understands and is willing to comply with the client's request, via the Upgrade message header field (section 14.42), for a change in the application protocol being used on this connection. The server will switch protocols to those defined by the response's Upgrade header field immediately after the empty line which terminates the 101 response. The protocol SHOULD be switched only when it is advantageous to do so. For example, switching to a newer version of HTTP is advantageous over older versions, and switching to a real-time, synchronous protocol might be advantageous when delivering resources that use such features. 10.2 Successful 2xx This class of status code indicates that the client's request was successfully received, understood, and accepted. 10
referer DNT X-Forwarded-For Status codes 301 Moved Permanently 302 Found 303 See Other 403 Forbidden 404 Not Found 451 Unavailable For Legal Reasons v t e This is a list of Hypertext http 404 Transfer Protocol (HTTP) response status codes. It includes codes from IETF internet standards, other http 400 IETF RFCs, other specifications, and some additional commonly used codes. The first digit of the status code specifies one of http 403 five classes of response; an HTTP client must recognise these five classes at a minimum. The phrases used are the standard wordings, but any human-readable alternative can be provided. Unless otherwise stated, the https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html 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 uses additional decimal sub-codes to provide more specific information,[3] but not all of those are here (note that these sub-codes only appear in the response payload and in documentation; not in the place of an actual HTTP status code). https://en.wikipedia.org/wiki/List_of_HTTP_status_codes Contents 1 1xx Informational 2 2xx Success 3 3xx Redirection 4 4xx Client Error 5 5xx Server Error 6 Unofficial codes 6.1 Internet Information Services 6.2 nginx 6.3 Cloudflare 7 See also 8 Notes 9 References 10 External links 1xx Informational[edit] Request received, continuing process. This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. Since HTTP/1.0 did not define any 1xx status codes, servers must not[note 1] send a 1xx response to an HTTP/1.0 client except under experimental conditions.[4] 100 Continue The server has received the request headers and the client should proceed to send the request body (in the case of a request for which a body needs to be sent; for example, a POST request). Sending a large request body to a server after a request has been rejected for inappropriate headers would be inefficient. To have a server check the request's headers, a client must send Expect: 100-continue as a header in its initial request and receive a 100 Continue status code in response before sending the body. The response 417 Expectation Failed indicates the request should not be continue
& Guides Learn the Web Tutorials References Developer Guides Accessibility Game development ...more docs Mozilla Docs Add-ons Firefox WebExtensions Developer ToolsFeedback Get Firefox help Get web development help Join https://developer.mozilla.org/en-US/docs/Web/HTTP/Status the MDN community Report a content problem Report a bug Search Search Languages 日本語 (ja) 한국어 (ko) Русский (ru) 中文 (简体) (zh-CN) 正體中文 (繁體) (zh-TW) Add a translation Edit Advanced Advanced History http://pcsupport.about.com/od/browsers/fl/http-400-bad-request.htm Print this article MDN Web technology For developers HTTP HTTP response status codes Your Search Results fscholz sivasain arulnithi rctgamer3 groovecoder dovgart Sheppy fusionchess HTTP response status codes In This Article Information responsesSuccessful responsesRedirection status code messagesClient error responsesServer error responses HTTP response status codes indicate whether a specific HTTP request has been successfully completed. Responses are grouped in five classes: informational responses, successful responses, redirects, client errors, and servers errors. Information responses 100 Continue This interim response indicates that everything so far is OK and that the client should continue with the request or ignore it if it is already finished. 101 status code 400 Switching Protocol This code is sent in response to an Upgrade: request header by the client, and indicates that the protocol the server is switching too. It was introduced to allow migration to an incompatible protocol version, and is not in common use. Successful responses 200 OK The request has succeeded. The meaning of a success varies depending on the HTTP method: GET: The resource has been fetched and is transmitted in the message body. HEAD: The entity headers are in the message body. POST: The resource describing the result of the action is transmitted in the message body. TRACE: The message body contains the request message as received by the server 201 Created The request has succeeded and a new resource has been created as a result of it. This is typically the response sent after a PUT request. 202 Accepted The request has been received but not yet acted upon. It is non-committal, meaning that there is no way in HTTP to later send an asynchronous response indicating the outcome of processing the request. It is intended for cases where another process or server handles the request, or for batch processing. 203 Non-Authoritative Information This response code mean
iPhone Internet & Network Digital Cameras Home Theater Getting More Help Buy Buying Guides Product Reviews Software & Apps Do More Web & Search Social Media Gaming New & Next Fix Internet & Network How to Fix a 400 Bad Request Error Methods to Fix a 400 Bad Request Error Share Pin Email Internet & Network Error Messages Basics by Tim Fisher Updated October 02, 2016 The 400 Bad Request error is an HTTP status code that means that the request you sent to the website server, often something simple like a request to load a web page, was somehow incorrect or corrupted and the server couldn't understand it.400 Bad Request errors appear differently on different websites so you may see something from the short list below instead of just "400" or another simple variant like that: How You Might See the 400 Error"400 Bad Request""Bad Request. 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. The request hostname is invalid.""400 - Bad request. The request could not be understood by the server due to malformed syntax. The client should not repeat the request without modifications."The 400 Bad Request error displays inside the Internet browser window, just as web pages do. 400 Bad Request errors, like all errors of this type, could be seen in any operating system and in any browser.In Internet Explorer, "The webpage cannot be found" message indicates a 400 Bad Request error. The IE title bar will say HTTP 400 Bad Request or something very similar to that.Windows Update can also report HTTP 400 errors but they display as error code 0x80244016 or with the following message: WU_E_PT_HTTP_STATUS_BAD_REQUEST. A 400 error that's reported for a link within a Microsoft Office application will often appear as a The remote server returned an error: (400) Bad Request. message within a small pop-up window.Cause of 400 Bad Request ErrorsThe 400 Bad Request error is oftentimes caused by entering or pasting the wrong URL in the address