\u8de8\u57df\u8cc7\u6e90\u5171\u4eab(CORS)\u4ecd\u7136\u662f\u73fe\u4ee3Web\u958b\u767c\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\uff0c\u7279\u5225\u662f\u5c0d\u65bc\u5728\u4f3a\u670d\u5668\u79df\u7528<\/a>\u74b0\u5883\u4e2d\u5de5\u4f5c\u7684\u958b\u767c\u4eba\u54e1\u4f86\u8aaa\u3002\u7121\u8ad6\u60a8\u662f\u5728\u7ba1\u7406\u5fae\u670d\u52d9\u3001\u5efa\u69cbAPI<\/a>\u9084\u662f\u8655\u7406\u524d\u7aef\u8acb\u6c42\uff0c\u4e86\u89e3CORS\u8a2d\u5b9a\u5c0d\u65bc\u5b89\u5168\u9ad8\u6548\u7684Web\u61c9\u7528\u7a0b\u5f0f\u90fd\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n \u5728\u6df1\u5165\u4f3a\u670d\u5668\u8a2d\u5b9a\u4e4b\u524d\uff0c\u8b93\u6211\u5011\u5f9e\u6280\u8853\u89d2\u5ea6\u5206\u6790CORS\u3002CORS\u901a\u904e\u65b0\u7684HTTP\u6a19\u982d\u64f4\u5c55\u4e86HTTP\u5354\u5b9a\uff0c\u4f7f\u700f\u89bd\u5668\u80fd\u5920\u5b58\u53d6\u4f86\u81ea\u4e0d\u540c\u4f86\u6e90\u7684\u8cc7\u6e90\u3002\u53ef\u4ee5\u5c07\u5176\u8996\u70ba\u57df\u4e4b\u9593\u7684\u5b89\u5168\u6a4b\u6a11\uff0c\u5728\u4fdd\u6301\u5b89\u5168\u908a\u754c\u7684\u540c\u6642\u5141\u8a31\u53d7\u63a7\u5b58\u53d6\u3002<\/p>\n \u7576\u700f\u89bd\u5668\u767c\u51fa\u8de8\u57df\u8acb\u6c42\u6642\uff0c\u5b83\u6703\u81ea\u52d5\u5305\u542b”Origin”\u6a19\u982d\u3002\u7136\u5f8c\u4f3a\u670d\u5668\u901a\u904e\u767c\u9001\u9069\u7576\u7684CORS\u6a19\u982d\u4f86\u6c7a\u5b9a\u662f\u5426\u5141\u8a31\u8a72\u8acb\u6c42\u3002\u4ee5\u4e0b\u662f\u5178\u578b\u7684CORS\u8acb\u6c42\u6d41\u7a0b\uff1a<\/p>\n \u5c0d\u65bcApache\u4f3a\u670d\u5668\uff0cCORS\u8a2d\u5b9a\u53ef\u4ee5\u5728.htaccess\u6a94\u6848\u6216\u4e3b\u4f3a\u670d\u5668\u8a2d\u5b9a\u4e2d\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u793a\u4f8b\uff1a<\/p>\n Nginx\u7684CORS\u8a2d\u5b9a\u901a\u5e38\u6bd4Apache\u66f4\u7c21\u6f54\u3002\u4ee5\u4e0b\u662f\u5728\u4f3a\u670d\u5668\u5340\u584a\u8a2d\u5b9a\u4e2d\u7684\u5be6\u73fe\u65b9\u5f0f\uff1a<\/p>\n \u6b64\u8a2d\u5b9a\u6709\u6548\u8655\u7406\u4e86\u6a19\u6e96\u8acb\u6c42\u548c\u9810\u6aa2OPTIONS\u8acb\u6c42\u3002’always’\u53c3\u6578\u78ba\u4fdd\u5373\u4f7f\u5728\u932f\u8aa4\u56de\u61c9\u4e2d\u4e5f\u6703\u767c\u9001\u6a19\u982d\u8cc7\u8a0a\u3002<\/p>\n \u5fae\u8edfIIS\u4f3a\u670d\u5668\u9700\u8981\u4e0d\u540c\u7684\u65b9\u6cd5\u3002\u60a8\u53ef\u4ee5\u901a\u904eWeb.config\u6a94\u6848\u6216\u4f7f\u7528IIS\u7ba1\u7406\u5668\u8a2d\u5b9aCORS\u3002\u4ee5\u4e0b\u662fWeb.config\u793a\u4f8b\uff1a<\/p>\n \u5728\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u4e2d\u5be6\u65bdCORS\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5b89\u5168\u8003\u616e\u56e0\u7d20\uff1a<\/p>\n \u4ee5\u4e0b\u662f\u52d5\u614b\u4f86\u6e90\u9a57\u8b49\u7684\u5b89\u5168\u793a\u4f8b\uff1a<\/p>\n CORS\u6545\u969c\u6392\u9664\u53ef\u80fd\u5f88\u8907\u96dc\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u700f\u89bd\u5668\u958b\u767c\u8005\u5de5\u5177\u548ccurl\u547d\u4ee4\u7684\u7cfb\u7d71\u65b9\u6cd5\uff1a<\/p>\n \u73fe\u4ee3Web\u61c9\u7528\u7a0b\u5f0f\u901a\u5e38\u9700\u8981\u8907\u96dc\u7684CORS\u8a2d\u5b9a\u3002\u4ee5\u4e0b\u662f\u8655\u7406\u8907\u96dc\u60c5\u5883\u7684\u65b9\u6cd5\uff1a<\/p>\n \u5c0d\u65bc\u591a\u500b\u4f86\u6e90\uff0c\u8003\u616e\u4ee5\u4e0b\u52d5\u614bNginx\u8a2d\u5b9a\uff1a<\/p>\n \u5be6\u65bd\u4ee5\u4e0b\u6e2c\u8a66\u7b56\u7565\u4ee5\u78ba\u4fddCORS\u8a2d\u5b9a\u6b63\u78ba\u904b\u4f5c\uff1a<\/p>\n \u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Node.js\u6e2c\u8a66\u8173\u672c\uff1a<\/p>\n \u5c0d\u65bc\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u548c\u73fe\u4ee3Web\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\uff0c\u6b63\u78ba\u7684CORS\u8a2d\u5b9a\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u9075\u5faa\u9019\u4e9b\u6280\u8853\u6307\u5357\u4e26\u5be6\u65bd\u9069\u7576\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u60a8\u53ef\u4ee5\u78ba\u4fddWeb\u670d\u52d9\u6709\u6548\u8655\u7406\u8de8\u57df\u8acb\u6c42\uff0c\u540c\u6642\u4fdd\u6301\u5b89\u5168\u6a19\u6e96\u3002<\/p>\n \u8acb\u8a18\u4f4f\u5b9a\u671f\u5be9\u6838\u60a8\u7684CORS\u8a2d\u5b9a\uff0c\u53ca\u6642\u66f4\u65b0\u5b89\u5168\u6700\u4f73\u5be6\u8e10\uff0c\u4e26\u5728\u90e8\u7f72\u5230\u751f\u7522\u74b0\u5883\u4e4b\u524d\u59cb\u7d42\u9032\u884c\u5fb9\u5e95\u6e2c\u8a66\u3002\u5c0d\u65bc\u7ba1\u7406\u4f3a\u670d\u5668\u79df\u7528\u670d\u52d9\u7684\u4eba\u54e1\u4f86\u8aaa\uff0c\u5be6\u65bd\u9069\u7576\u7684CORS\u7b56\u7565\u5c0d\u65bc\u63d0\u4f9b\u5b89\u5168\u53ef\u9760\u7684Web\u670d\u52d9\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u8de8\u57df\u8cc7\u6e90\u5171\u4eab(CORS)\u4ecd\u7136\u662f\u73fe\u4ee3Web\u958b\u767c\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\uff0c\u7279\u5225\u662f\u5c0d\u65bc\u5728\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u4e2d\u5de5\u4f5c\u7684\u958b\u767c\u4eba\u54e1\u4f86\u8aaa\u3002\u7121 […]<\/p>\n\u6df1\u5165\u7406\u89e3CORS\uff1a\u6280\u8853\u8a73\u89e3<\/strong><\/h2>\n
\r\nBrowser -> Server: \r\nGET \/api\/data\r\nOrigin: https:\/\/app.example.com\r\n\r\nServer -> Browser:\r\nAccess-Control-Allow-Origin: https:\/\/app.example.com\r\nAccess-Control-Allow-Methods: GET, POST\r\nAccess-Control-Allow-Headers: Content-Type\r\n<\/code><\/pre>\nApache\u4f3a\u670d\u5668CORS\u8a2d\u5b9a<\/strong><\/h2>\n
\r\n# In .htaccess or Apache configuration\r\nHeader set Access-Control-Allow-Origin \"https:\/\/trusted-site.com\"\r\nHeader set Access-Control-Allow-Methods \"GET,POST,OPTIONS,DELETE,PUT\"\r\nHeader set Access-Control-Allow-Headers \"Content-Type, Authorization\"\r\nHeader set Access-Control-Allow-Credentials \"true\"\r\n\r\n# Handle OPTIONS preflight requests\r\nRewriteEngine On\r\nRewriteCond %{REQUEST_METHOD} OPTIONS\r\nRewriteRule ^(.*)$ $1 [R=200,L]\r\n<\/code><\/pre>\nNginx\u4f3a\u670d\u5668CORS\u5be6\u73fe<\/strong><\/h2>\n
\r\nserver {\r\n location \/ {\r\n if ($request_method = 'OPTIONS') {\r\n add_header 'Access-Control-Allow-Origin' '*';\r\n add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, DELETE, PUT';\r\n add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization';\r\n add_header 'Access-Control-Max-Age' 1728000;\r\n add_header 'Content-Type' 'text\/plain; charset=utf-8';\r\n add_header 'Content-Length' 0;\r\n return 204;\r\n }\r\n add_header 'Access-Control-Allow-Origin' '*' always;\r\n }\r\n}\r\n<\/code><\/pre>\nIIS\u4f3a\u670d\u5668CORS\u8a2d\u5b9a<\/strong><\/h2>\n
\r\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n<configuration>\r\n <system.webServer>\r\n <httpProtocol>\r\n <customHeaders>\r\n <add name=\"Access-Control-Allow-Origin\" value=\"*\" \/>\r\n <add name=\"Access-Control-Allow-Headers\" value=\"Content-Type\" \/>\r\n <add name=\"Access-Control-Allow-Methods\" value=\"GET, POST, PUT, DELETE, OPTIONS\" \/>\r\n <add name=\"Access-Control-Allow-Credentials\" value=\"true\" \/>\r\n <\/customHeaders>\r\n <\/httpProtocol>\r\n <\/system.webServer>\r\n<\/configuration>\r\n<\/code><\/pre>\n\u5b89\u5168\u6700\u4f73\u5be6\u8e10\u548c\u5e38\u898b\u9677\u9631<\/strong><\/h2>\n
\n
\r\n# Apache\u8a2d\u5b9a\u8207\u52d5\u614b\u4f86\u6e90\u9a57\u8b49\r\nSetEnvIf Origin \"^https?:\/\/(.*\\.)?trusted-domain.com$\" ALLOWED_ORIGIN=$0\r\nHeader set Access-Control-Allow-Origin %{ALLOWED_ORIGIN}e env=ALLOWED_ORIGIN\r\n<\/code><\/pre>\n\u9664\u932fCORS\u554f\u984c<\/strong><\/h2>\n
\r\n# \u4f7f\u7528curl\u6e2c\u8a66CORS\u6a19\u982d\r\ncurl -X OPTIONS \\\r\n -H \"Origin: https:\/\/your-app.com\" \\\r\n -H \"Access-Control-Request-Method: POST\" \\\r\n -H \"Access-Control-Request-Headers: X-Requested-With\" \\\r\n -verbose \\\r\n https:\/\/api.target-server.com\/endpoint\r\n<\/code><\/pre>\n\u9032\u968eCORS\u60c5\u5883<\/strong><\/h2>\n
\n
\r\nmap $http_origin $cors_origin {\r\n default \"\";\r\n \"~^https?:\/\/.*\\.trusted-domain1\\.com$\" \"$http_origin\";\r\n \"~^https?:\/\/.*\\.trusted-domain2\\.com$\" \"$http_origin\";\r\n}\r\n\r\nserver {\r\n location \/api\/ {\r\n if ($cors_origin) {\r\n add_header 'Access-Control-Allow-Origin' $cors_origin;\r\n }\r\n # \u6b64\u8655\u6dfb\u52a0\u5176\u4ed6CORS\u6a19\u982d\r\n }\r\n}\r\n<\/code><\/pre>\n\u6e2c\u8a66\u548c\u9a57\u8b49<\/strong><\/h2>\n
\n
\r\nconst fetch = require('node-fetch');\r\n\r\nasync function testCORS(origin, endpoint) {\r\n try {\r\n const response = await fetch(endpoint, {\r\n method: 'OPTIONS',\r\n headers: {\r\n 'Origin': origin,\r\n 'Access-Control-Request-Method': 'POST'\r\n }\r\n });\r\n console.log('CORS Headers:', response.headers);\r\n return response.ok;\r\n } catch (error) {\r\n console.error('CORS Test Failed:', error);\r\n return false;\r\n }\r\n}\r\n<\/code><\/pre>\n\u7d50\u8ad6<\/strong><\/h2>\n