{"id":1136,"date":"2014-09-15T14:16:13","date_gmt":"2014-09-15T06:16:13","guid":{"rendered":"http:\/\/www.zhangling.org\/blog\/?p=1136"},"modified":"2014-09-15T14:21:48","modified_gmt":"2014-09-15T06:21:48","slug":"cors-preflighted-options-request","status":"publish","type":"post","link":"https:\/\/www.zhangling.org\/blog\/20140915\/cors-preflighted-options-request.html","title":{"rendered":"CORS (Cross-Origin Resource Sharing) preflighted OPTIONS request"},"content":{"rendered":"<p><a title=\"cors\" href=\"http:\/\/www.w3.org\/TR\/cors\/\" target=\"_blank\">CORS<\/a>\u63d0\u4f9b\u4e86\u5b89\u5168\u8bbf\u95ee\u8de8\u57df\u8bf7\u6c42\u7684\u65b9\u6848\uff0c\u76ee\u524d\u4e3b\u6d41\u7684\u6d4f\u89c8\u5668\u90fd\u652f\u6301CORS\u3002\u5176\u4e2dCORS preflighted request\u4e2d\u63d0\u5230\u6d4f\u89c8\u5668\u9700\u8981\u5148\u53d1\u51fa\u4e00\u4e2aOPTIONS\u7684\u8bf7\u6c42\u5728\u670d\u52a1\u5668\u7aef\u83b7\u5f97\u901a\u8fc7\u540e\uff08\u5229\u7528HTTP response\u4e2d\u7684CORS header\u8fdb\u884c\u5ba1\u6279\uff09\u624d\u53ef\u4ee5\u8fdb\u884c\u540e\u7eed\u7684\u8bbf\u95ee\u3002\u6839\u636e<a href=\"https:\/\/dvcs.w3.org\/hg\/cors\/raw-file\/tip\/Overview.html#preflight-request\" target=\"_blank\">\u89c4\u8303<\/a>\uff0c\u6b64HTTP OPTIONS\u8bf7\u6c42\u4e2d<strong>\u4e0d\u5141\u8bb8\u643a\u5e26\u4efb\u4f55cookie<\/strong>\u3002<\/p>\n<p>\u6211\u5f88\u60f3\u77e5\u9053\u8fd9\u6837\u7684\u8bbe\u8ba1\u662f\u51fa\u4e8e\u4ec0\u4e48\u8003\u8651\uff1f\u5982\u679c\u662f\u51fa\u4e8e\u5b89\u5168\u8003\u8651\uff0c\u90a3\u4e48\u5f53\u524d\u7528\u6237session\u5982\u679c\u5df2\u7ecf\u767b\u5f55\u6b64\u8de8\u7ad9\u7f51\u7ad9\u5e76\u4e14\u6709cookie\uff0c\u8fd9\u4e9bcookie\u5bf9\u6240\u8bbf\u95ee\u7684\u8de8\u57df\u670d\u52a1\u5668\u6765\u8bf4\u662f\u6ca1\u6709\u4e2a\u4eba\u4fe1\u606f\u6cc4\u9732\u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u672c\u6765\u8fd9\u4e9bcookie\u5c31\u662f\u670d\u52a1\u5668\u4ea7\u751f\u5e76\u8fd4\u56de\u7ed9\u6d4f\u89c8\u5668\u7684\uff0c\u4f60\u9001\u4e0d\u9001\u4e0d\u5b58\u5728\u5b89\u5168\u9690\u60a3\u3002Chrome\u4e4b\u524d\u6709\u4e2a<a href=\"https:\/\/code.google.com\/p\/chromium\/issues\/detail?id=377541\" target=\"_blank\">bug<\/a>\u5c31\u662f\u5728OPTIONS\u8bf7\u6c42\u91cc\u9762\u5e26\u4e86cookie\uff0c\u6700\u8fd1\u521a\u521a\u4fee\u590d\uff0c\u800cChrome\u5e76\u6ca1\u6709\u8d28\u7591\u89c4\u8303\u7684\u8bbe\u8ba1\u662f\u5426\u5408\u7406\u3002<\/p>\n<p>\u4e0d\u5141\u8bb8\u5e26Cookie\u5728\u91c7\u7528\u4e86\u5982TAM, Siteminder\u7b49\u7edf\u4e00\u8ba4\u8bc1\u7684\u73af\u5883\u4e0b\u5f88\u9ebb\u70e6\uff0c\u56e0\u4e3a\u8fd9\u6837\u7684request\u8fd8\u6ca1\u6709\u673a\u4f1a\u5230\u8fbe\u5e94\u7528\u672c\u8eab\u5c31\u88ab\u524d\u7aefreverse proxy\uff08\u6216web server agent\uff09\u62e6\u4f4f\u4e86\uff0c\u800c\u5b83\u4eec\u90fd\u4e0d\u5177\u5907\u5224\u65ad\u76ee\u6807\u5e94\u7528\u662f\u5426\u4f1a\u653e\u884c\u6b64\u8de8\u57df\u8bf7\u6c42\u7684\u80fd\u529b\uff08\u4e00\u822c\u60c5\u51b5\u4e0b\u5e94\u7528\u7a0b\u5e8f\u8d1f\u8d23\u7ef4\u62a4\u4e00\u4e2a\u4fe1\u4efb\u7f51\u7ad9\u7684\u767d\u540d\u5355\uff09\uff0c\u6240\u4ee5\u8fd8\u5f97\u901a\u8fc7\u914d\u7f6e\u653e\u884c\u6b64\u65e0cookie\u7684\u8bf7\u6c42\u5230\u76ee\u6807\u5e94\u7528\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CORS\u63d0\u4f9b\u4e86\u5b89\u5168\u8bbf\u95ee\u8de8\u57df\u8bf7\u6c42\u7684\u65b9\u6848\uff0c\u76ee\u524d\u4e3b\u6d41\u7684\u6d4f\u89c8\u5668\u90fd\u652f\u6301CORS\u3002\u5176\u4e2dCORS preflighted request\u4e2d\u63d0\u5230\u6d4f\u89c8\u5668\u9700\u8981\u5148\u53d1\u51fa\u4e00\u4e2aOPTIONS\u7684\u8bf7\u6c42\u5728\u670d\u52a1\u5668\u7aef\u83b7\u5f97\u901a\u8fc7\u540e\uff08\u5229\u7528HTTP response\u4e2d\u7684CORS header\u8fdb\u884c\u5ba1\u6279\uff09\u624d\u53ef\u4ee5\u8fdb\u884c\u540e\u7eed\u7684\u8bbf\u95ee\u3002\u6839\u636e\u89c4\u8303\uff0c\u6b64HTTP OPTIONS\u8bf7\u6c42\u4e2d\u4e0d\u5141\u8bb8\u643a\u5e26\u4efb\u4f55cookie\u3002 \u6211\u5f88\u60f3\u77e5\u9053\u8fd9\u6837\u7684\u8bbe\u8ba1\u662f\u51fa\u4e8e\u4ec0\u4e48\u8003\u8651\uff1f\u5982\u679c\u662f\u51fa\u4e8e\u5b89\u5168\u8003\u8651\uff0c\u90a3\u4e48\u5f53\u524d\u7528\u6237session\u5982\u679c\u5df2\u7ecf\u767b\u5f55\u6b64\u8de8\u7ad9\u7f51\u7ad9\u5e76\u4e14\u6709cookie\uff0c\u8fd9\u4e9bcookie\u5bf9\u6240\u8bbf\u95ee\u7684\u8de8\u57df\u670d\u52a1\u5668\u6765\u8bf4\u662f\u6ca1\u6709\u4e2a\u4eba\u4fe1\u606f\u6cc4\u9732\u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u672c\u6765\u8fd9\u4e9bcookie\u5c31\u662f\u670d\u52a1\u5668\u4ea7\u751f\u5e76\u8fd4\u56de\u7ed9\u6d4f\u89c8\u5668\u7684\uff0c\u4f60\u9001\u4e0d\u9001\u4e0d\u5b58\u5728\u5b89\u5168\u9690\u60a3\u3002Chrome\u4e4b\u524d\u6709\u4e2abug\u5c31\u662f\u5728OPTIONS\u8bf7\u6c42\u91cc\u9762\u5e26\u4e86cookie\uff0c\u6700\u8fd1\u521a\u521a\u4fee\u590d\uff0c\u800cChrome\u5e76\u6ca1\u6709\u8d28\u7591\u89c4\u8303\u7684\u8bbe\u8ba1\u662f\u5426\u5408\u7406\u3002 \u4e0d\u5141\u8bb8\u5e26Cookie\u5728\u91c7\u7528\u4e86\u5982TAM, Siteminder\u7b49\u7edf\u4e00\u8ba4\u8bc1\u7684\u73af\u5883\u4e0b\u5f88\u9ebb\u70e6\uff0c\u56e0\u4e3a\u8fd9\u6837\u7684request\u8fd8\u6ca1\u6709\u673a\u4f1a\u5230\u8fbe\u5e94\u7528\u672c\u8eab\u5c31\u88ab\u524d\u7aefreverse proxy\uff08\u6216web server agent\uff09\u62e6\u4f4f\u4e86\uff0c\u800c\u5b83\u4eec\u90fd\u4e0d\u5177\u5907\u5224\u65ad\u76ee\u6807\u5e94\u7528\u662f\u5426\u4f1a\u653e\u884c\u6b64\u8de8\u57df\u8bf7\u6c42\u7684\u80fd\u529b\uff08\u4e00\u822c\u60c5\u51b5\u4e0b\u5e94\u7528\u7a0b\u5e8f\u8d1f\u8d23\u7ef4\u62a4\u4e00\u4e2a\u4fe1\u4efb\u7f51\u7ad9\u7684\u767d\u540d\u5355\uff09\uff0c\u6240\u4ee5\u8fd8\u5f97\u901a\u8fc7\u914d\u7f6e\u653e\u884c\u6b64\u65e0cookie\u7684\u8bf7\u6c42\u5230\u76ee\u6807\u5e94\u7528\u3002 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