http error 450

16.2.3 online status judgment To determine the browser's online status, HTML5 provides two methods to check whether the browser is online. Navigator. Online attribute: the navigator. Online attribute returns whether the current status is online.

HTTP 400-Invalid request HTTP 401.1-Unauthorized: Logon failed HTTP 401.2-Unauthorized: Server configuration issues cause logon failure HTTP 401.3-acl prohibit access to resources HTTP 401.4-Unauthorized: Authorization denied by filter HTTP

HTTP 400-invalid request HTTP 401.1-unauthorized: Logon Failed HTTP 401.2-unauthorized: logon fails due to server configuration problems HTTP 401.3-ACL prohibit Resource Access HTTP 401.4-unauthorized: Authorization denied by filter HTTP 40

HTTP Error code meaning: 100: Continue101: witchingProtocols200: OK201: Created202: Accepted203: Non-AuthoritativeInformation204: NoContent205: ResetContent206: PartialContent300: MultipleChoices301: MovedPermanently HTTP Error Code Description: 100:

HTTP error Code table all HTTP status codes and their definitions.Code indication2XX success200 normal; The request is complete.201 Normal; Immediately after the POST command.202 normal; Accepted for processing, but processing is not yet complete.203

HTTP Error Code Description:"100": continue"101": witching protocols"200": OK"201": created& Quot; 202 & quot;: accepted"203": Non-authoritative information"204": NO content"205": reset content"206": Partial content& Quot; 300 & quot;: Multiple

HTTP 400-invalid requestHTTP 401.1-unauthorized: Logon FailedHTTP 401.2-unauthorized: logon fails due to server configuration problemsHTTP 401.3-ACL prohibit Resource AccessHTTP 401.4-unauthorized: Authorization denied by filterHTTP

HTTP Error Code Description:"100": continue"101": witching protocols"200": OK"201": created& Quot; 202 & quot;: accepted"203": Non-authoritative information"204": NO content"205": reset content"206": Partial content& Quot; 300 & quot;: Multiple

"100": continue"101": witching protocols"200": OK"201": created& Quot; 202 & quot;: accepted"203": Non-authoritative information"204": NO content"205": reset content"206": Partial content& Quot; 300 & quot;: Multiple Choices"301": moved permanently"3

HTTP error code meaning:"Continue":"101": Witching Protocols"$": OK"201": Created"202": Accepted"203": non-authoritative information"204": No Content"205": Reset Content"206": Partial Content"Multiple": Choices"301": Moved Permanently"302": Found"303