{"id":52971,"date":"2024-12-03T09:56:12","date_gmt":"2024-12-03T01:56:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52971\/"},"modified":"2024-12-03T09:56:12","modified_gmt":"2024-12-03T01:56:12","slug":"cors%ef%bc%88%e8%b7%a8%e6%ba%90%e8%b5%84%e6%ba%90%e5%85%b1%e4%ba%ab%ef%bc%89%e7%ae%80%e4%bb%8b-%e4%bb%80%e4%b9%88%e6%98%afcors%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52971\/","title":{"rendered":"CORS\uff08\u8de8\u6e90\u8d44\u6e90\u5171\u4eab\uff09\u7b80\u4ecb \u4ec0\u4e48\u662fCORS\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>CORS\uff08\u8de8\u6e90\u8d44\u6e90\u5171\u4eab\uff09\u7b80\u4ecb \u4ec0\u4e48\u662fCORS\uff1f<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span>    <\/p>\n<p><span style=\"color: #222222;, sans-serif;background-color: 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\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u4ece\u53e6\u4e00\u4e2a\u57df\u8bf7\u6c42\u6570\u636e\u65f6\uff0c\u5b83\u4f1a\u53d1\u9001\u4e00\u4e2a HTTP \u8bf7\u6c42\uff0c\u5176\u4e2d\u5305\u542b\u6307\u793a\u8bf7\u6c42\u6765\u6e90\u7684\u7279\u5b9a\u6807\u5934\u3002\u7136\u540e\uff0c\u6258\u7ba1\u6240\u8bf7\u6c42\u8d44\u6e90\u7684\u670d\u52a1\u5668\u5fc5\u987b\u901a\u8fc7\u5728\u54cd\u5e94\u4e2d\u53d1\u9001\u9002\u5f53\u7684 CORS \u6807\u5934\u6765\u51b3\u5b9a\u662f\u5426\u5141\u8bb8\u8be5\u8bf7\u6c42\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u6b63\u5728\u6784\u5efa\u6258\u7ba1\u5728 http:\/\/example.com \u4e0a\u7684\u524d\u7aef\u5e94\u7528\u7a0b\u5e8f\uff0c\u5e76\u4e14\u5b83\u9700\u8981\u4ece http:\/\/api.example2.com \u83b7\u53d6\u6570\u636e\uff0c\u5219 CORS \u6807\u5934\u5141\u8bb8\u4f4d\u4e8e api.example2 \u7684\u670d\u52a1\u5668\u3002 com \u6307\u5b9a\u662f\u5426\u5141\u8bb8\u6765\u81ea example.com 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\u6765\u63d0\u4f9b\u9759\u6001\u8d44\u4ea7\uff0c\u4f8b\u5982\u56fe\u50cf\u3001\u6837\u5f0f\u8868\u6216 JavaScript \u6587\u4ef6\u3002 CORS \u5141\u8bb8\u4e3b\u7ad9\u70b9\u4ece\u6258\u7ba1\u5728\u4e0d\u540c\u6e90\u7684 CDN \u8bf7\u6c42\u8fd9\u4e9b\u8d44\u6e90\u3002<\/p>\n<p>CORS \u4e2d\u7684\u5173\u952e\u53c2\u6570\u548c\u6307\u6807<\/p>\n<p>Access-Control-Allow-Origin\uff1a\u8be5\u6807\u5934\u662f CORS \u4e2d\u6700\u91cd\u8981\u7684\u6807\u5934\uff0c\u6307\u793a\u5141\u8bb8\u54ea\u4e9b\u6e90\u8bbf\u95ee\u8be5\u8d44\u6e90\u3002\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\uff1a<\/p>\n<p>\u7279\u5b9a\u6765\u6e90\uff08Access-Control-Allow-Origin\uff1ahttps:\/\/example.com\uff09<br \/> \u901a\u914d\u7b26\uff08Access-Control-Allow-Origin\uff1a*\uff09\uff0c\u5141\u8bb8\u4efb\u4f55\u6e90\u8bbf\u95ee\u8d44\u6e90\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e\u5305\u542b\u51ed\u636e\u7684\u8bf7\u6c42\u4e0d\u5141\u8bb8\u8fd9\u6837\u505a\u3002<br \/> Access-Control-Allow-Methods\uff1a\u6307\u5b9a\u8bbf\u95ee\u8d44\u6e90\u65f6\u5141\u8bb8\u4f7f\u7528\u54ea\u4e9b HTTP \u65b9\u6cd5\uff08\u4f8b\u5982 GET\u3001POST\u3001PUT\u3001DELETE\uff09\u3002\u4f8b\u5982\uff1a<br \/> \u8bbf\u95ee\u63a7\u5236\u5141\u8bb8\u65b9\u6cd5\uff1aGET\u3001POST\u3001PUT<\/p>\n<p>Access-Control-Allow-Headers\uff1a\u5217\u51fa\u53d1\u51fa\u5b9e\u9645\u8bf7\u6c42\u65f6\u53ef\u4ee5\u4f7f\u7528\u7684 HTTP \u6807\u5934\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8bf7\u6c42\u5305\u542b\u50cf X-Custom-Header \u8fd9\u6837\u7684\u81ea\u5b9a\u4e49\u6807\u5934\uff0c\u5219\u5e94\u5728\u6b64\u5904\u6307\u5b9a\uff1a<br \/> \u8bbf\u95ee\u63a7\u5236\u5141\u8bb8\u6807\u5934\uff1aX-\u81ea\u5b9a\u4e49\u6807\u5934\uff0c\u5185\u5bb9\u7c7b\u578b<\/p>\n<p>Access-Control-Allow-Credentials\uff1a\u6307\u793a\u8bf7\u6c42\u662f\u5426\u53ef\u4ee5\u5305\u542b cookie\u3001HTTP \u8eab\u4efd\u9a8c\u8bc1\u6216\u5ba2\u6237\u7aef\u8bc1\u4e66\u7b49\u51ed\u636e\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u8eab\u4efd\u9a8c\u8bc1\u7684 API \u5f88\u91cd\u8981\u3002\u4f8b\u5982\uff1aAccess-Control-Allow-Credentials: true<\/p>\n<p>Access-Control-Expose-Headers\uff1a\u6307\u5b9a\u6d4f\u89c8\u5668\u5e94\u5411\u8bf7\u6c42\u5ba2\u6237\u7aef\u516c\u5f00\u54ea\u4e9b\u6807\u5934\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6d4f\u89c8\u5668\u4ec5\u516c\u5f00\u4e00\u7ec4\u6709\u9650\u7684\u6807\u5934\uff0c\u4f8b\u5982 Cache-Control \u548c Content-Type\uff0c\u4f46 Access-Control-Expose-Headers \u53ef\u4ee5\u63d0\u4f9b\u5176\u4ed6\u6807\u5934\u3002<\/p>\n<p>Access-Control-Max-Age\uff1a\u5b9a\u4e49\u6d4f\u89c8\u5668\u53ef\u4ee5\u7f13\u5b58\u9884\u68c0\u8bf7\u6c42\u7ed3\u679c\uff08\u89c1\u4e0b\u6587\uff09\u7684\u65f6\u95f4\u3002\u5b83\u901a\u8fc7\u51cf\u5c11\u9884\u68c0\u8bf7\u6c42\u7684\u6570\u91cf\u6765\u5e2e\u52a9\u63d0\u9ad8\u6027\u80fd\u3002\u4f8b\u5982\uff1a<br \/> Access-Control-Max-Age\uff1a86400\uff0824\u5c0f\u65f6\uff09<\/p>\n<p>\u9884\u68c0\u8bf7\u6c42\uff1a\u5bf9\u4e8e\u67d0\u4e9b\u7c7b\u578b\u7684\u8bf7\u6c42\uff0c\u5c24\u5176\u662f\u90a3\u4e9b\u4fee\u6539\u670d\u52a1\u5668\u6570\u636e\uff08\u4f8b\u5982 PUT \u6216 DELETE\uff09\u7684\u8bf7\u6c42\uff0c\u6d4f\u89c8\u5668\u4f7f\u7528 HTTP OPTIONS \u65b9\u6cd5\u53d1\u9001\u9884\u68c0\u8bf7\u6c42\u3002\u8fd9\u4f1a\u5411\u670d\u52a1\u5668\u68c0\u67e5\u5b9e\u9645\u8bf7\u6c42\u662f\u5426\u53ef\u4ee5\u5b89\u5168\u53d1\u9001\u3002\u670d\u52a1\u5668\u5bf9\u9884\u68c0\u8bf7\u6c42\u7684\u54cd\u5e94\u51b3\u5b9a\u6d4f\u89c8\u5668\u662f\u5426\u7ee7\u7eed\u5904\u7406\u5b9e\u9645\u8bf7\u6c42\u3002<\/p>\n<p>\u4ec0\u4e48\u65f6\u5019\u9700\u8981 CORS\uff1f<\/p>\n<p>\u4ee5\u4e0b\u60c5\u51b5\u4e0b\u9700\u8981 CORS\uff1a<\/p>\n<p>\u53d1\u51fa\u8de8\u57df\u8bf7\u6c42\uff1a\u5982\u679c\u60a8\u7684\u524d\u7aef\u548c\u540e\u7aef\u7531\u4e0d\u540c\u7684\u57df\u6216\u7aef\u53e3\u63d0\u4f9b\u670d\u52a1\uff0c\u6216\u8005\u60a8\u4ece\u5e94\u7528\u7a0b\u5e8f\u8bbf\u95ee\u5916\u90e8 API\u3002<\/p>\n<p>\u8bbf\u95ee CDN \u6216\u7b2c\u4e09\u65b9\u670d\u52a1\u4e0a\u6258\u7ba1\u7684\u8d44\u6e90\uff1a\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u4ece CDN \u52a0\u8f7d\u5b57\u4f53\u3001\u56fe\u50cf\u6216\u5176\u4ed6\u8d44\u6e90\uff0c\u670d\u52a1\u5668\u5fc5\u987b\u5305\u542b CORS \u6807\u5934\u4ee5\u5141\u8bb8\u60a8\u7684\u7f51\u7ad9\u8bbf\u95ee\u5b83\u4eec\u3002<\/p>\n<p>\u5b89\u5168\u95ee\u9898\uff1a\u867d\u7136\u542f\u7528 CORS 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