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[英]XMLHttpRequest cannot load URL. Response for preflight has invalid HTTP status code 404
[英]xmlhttprequest cannot load response URL. for preflight has invalid http status code 405 for $http.delete
我有Web API服務:
public void Delete(int id)
{
}
Web api-Web.config
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Headers" value="Content-Type" />
<add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS" />
</customHeaders>
</httpProtocol>
<validation validateIntegratedModeConfiguration="false" />
<directoryBrowse enabled="true" />
<modules runAllManagedModulesForAllRequests="true" />
<handlers>
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
<add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
當我使用Postman(Chrome擴展程序)使用它時。 我將數據作為“表單數據”傳遞。 我得到200個返回碼。 我使用angularjs調用了此方法:
deletesurvey: function(surveyData) {
var objFormData = new FormData();
for (var key in surveyData)
objFormData.append(key, surveyData[key]);
return $http.delete(configurationurl + 'Survey', objFormData, {
transformRequest: angular.identity,
headers: { 'Content-Type': undefined }
});
我在Web.Config中設置了標頭:
<modules runAllManagedModulesForAllRequests="true" />
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Methods" value="GET,POST,PUT,HEAD,DELETE,OPTIONS" />
<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept" />
<add name="Access-Control-Request-Methods" value="*" />
<add name="Access-Control-Max-Age" value="1728000" />
</customHeaders>
</httpProtocol>
調用deletesurvey函數后,它給我錯誤(瀏覽器為Chrome) xmlhttprequest無法加載預檢的響應URL,其中HTTP狀態代碼無效405
似乎正在發生的事是服務器未/不正確地處理了CORS “預檢”請求(使用OPTIONS
方法)。
建議閱讀:
對preflight
請求的響應應包含以下內容
OPTIONS / HTTP/1.1
Origin: http://example.com
Access-Control-Request-Method: DELETE
( Access-Control-Request-Method
是這里的主要焦點)
至於為什么“郵遞員”擴展名不給您帶來麻煩,它根本不受“ 同一來源”政策的影響
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