跨域访问设置

{"value":"## \u8de8\u57df\u8bbf\u95ee\u8bbe\u7f6e\n\n\u652f\u6301 HTML5 \u534f\u8bae\u4e2d\u7684\u8de8\u57df\u8d44\u6e90\u5171\u4eab(CORS)\u8bbe\u7f6e\uff0c\u5e2e\u52a9\u7528\u6237\u5b9e\u73b0\u8de8\u57df\u8bbf\u95ee\u3002\u5f53\u6536\u5230\u4e00\u4e2a\u8de8\u57df\u8bf7\u6c42\uff08\u6216\u8005 OPTIONS \u8bf7\u6c42\uff09\u65f6\uff0c\u4f1a\u8bfb\u53d6\u5b58\u50a8\u7a7a\u95f4\u5bf9\u5e94\u7684 CORS \u89c4\u5219\uff0c\u7136\u540e\u8fdb\u884c\u76f8\u5e94\u7684\u6743\u9650\u68c0\u67e5\u3002\u7cfb\u7edf\u4f1a\u4f9d\u6b21\u68c0\u67e5\u6bcf\u4e00\u6761\u89c4\u5219\uff0c\u4f7f\u7528\u7b2c\u4e00\u6761\u5339\u914d\u7684\u89c4\u5219\u6765\u5141\u8bb8\u8bf7\u6c42\u5e76\u8fd4\u56de\u5bf9\u5e94\u7684 header\u3002\u5982\u679c\u6240\u6709\u89c4\u5219\u90fd\u5339\u914d\u5931\u8d25\uff0c\u5219\u4e0d\u9644\u52a0\u4efb\u4f55 CORS \u76f8\u5173\u7684 header\n\n\u8de8\u57df\u8bbf\u95ee\u8bbe\u7f6e\u5185\u5d4c\u4e8e\u5728\u300c\u7a7a\u95f4\u8bbe\u7f6e\u300d\u754c\u9762\u4e2d\uff0c\u70b9\u51fb\u300c\u8de8\u57df\u8bbe\u7f6e\u300d\u7684\u300c\u8bbe\u7f6e\u300d\u6309\u94ae\u5373\u53ef\u8fdb\u5165\u8de8\u57df\u8bbf\u95ee\u89c4\u5219\u8bbe\u7f6e\u754c\u9762\u3002\n\n\n\n### \u521b\u5efa\u89c4\u5219\n\n\u70b9\u51fb\u300c\u65b0\u589e\u89c4\u5219\u300d\u6309\u94ae\uff0c\u5f39\u51fa\u89c4\u5219\u521b\u5efa\u6846\u5982\u4e0b\uff1a\n\n\n\n- \u586b\u5199\u6765\u6e90\uff1a\u6307\u5b9a\u5141\u8bb8\u7684\u8de8\u57df\u8bf7\u6c42\u7684\u6765\u6e90\n - \u5fc5\u586b\n - \u5141\u8bb8\u591a\u6761\u5339\u914d\u89c4\u5219\uff0c\u591a\u6761\u89c4\u5219\u9700\u6362\u884c\u586b\u5199\n - \u6bcf\u6761\u5339\u914d\u89c4\u5219\u5141\u8bb8\u4f7f\u7528\u6700\u591a\u4e00\u4e2a\u661f\u53f7`*`\u901a\u914d\u7b26\n - \u5355\u72ec\u586b\u5199\u661f\u53f7`*`\u901a\u914d\u7b26\uff0c\u8868\u793a\u5141\u8bb8\u6240\u6709\u6765\u6e90\u7684\u8de8\u57df\u8bf7\u6c42\n- \u586b\u5199\u5141\u8bb8Methods\uff1a\u6307\u5b9a\u5141\u8bb8\u7684\u8de8\u57df\u8bf7\u6c42\u65b9\u6cd5\n - \u5fc5\u586b\u3001\u591a\u9009\n- \u586b\u5199\u5141\u8bb8Headers\uff1a\u6307\u5b9a\u5141\u8bb8\u7684\u8de8\u57df\u8bf7\u6c42\u7684\u54cd\u5e94\u5934\n - \u5141\u8bb8\u591a\u6761\u5339\u914d\u89c4\u5219\uff0c\u591a\u6761\u89c4\u5219\u9700\u6362\u884c\u586b\u5199\n - \u5982\u679c\u6709\u901a\u914d\u7b26`*`\uff0c\u5219\u5355\u884c\u53ea\u80fd\u662f\u901a\u914d\u7b26`*`\n- \u586b\u5199\u66b4\u9732Headers\uff1a\u6307\u5b9a\u5141\u8bb8\u7528\u6237\u4ece\u5e94\u7528\u7a0b\u5e8f\u4e2d\u8bbf\u95ee\u7684\u54cd\u5e94\u5934\uff08\u4f8b\u5982\uff0c\u4e00\u4e2a Javascript \u7684 XMLHttpRequest \u5bf9\u8c61)\u3002\n - \u5141\u8bb8\u591a\u6761\u5339\u914d\u89c4\u5219\uff0c\u591a\u6761\u89c4\u5219\u9700\u6362\u884c\u586b\u5199\n - \u4e0d\u5141\u8bb8\u4f7f\u7528\u661f\u53f7`*`\u901a\u914d\u7b26\u3002\n- \u586b\u5199\u7f13\u5b58\u65f6\u95f4\uff1a\u6307\u5b9a\u6d4f\u89c8\u5668\u5bf9\u7279\u5b9a\u8d44\u6e90\u7684\u9884\u53d6\uff08OPTIONS\uff09\u8bf7\u6c42\u8fd4\u56de\u7ed3\u679c\u7684\u7f13\u5b58\u65f6\u95f4\n - \u5355\u4f4d\uff1a\u79d2\n\n\n\n### \u4fee\u6539\u89c4\u5219\n\n\u5df2\u6dfb\u52a0\u7684\u89c4\u5219\uff0c\u4ee5\u5217\u8868\u5c55\u793a\uff1a\n\n\n\n\u70b9\u51fb\u89c4\u5219\u5217\u8868\u300c\u64cd\u4f5c\u300d\u5217\u7684\u300c\u7f16\u8f91\u300d\u56fe\u6807\uff0c\u53ef\u4ee5\u4fee\u6539\u5df2\u6709\u89c4\u5219\u7684\u53c2\u6570\uff1a\n\n\n\n- \u8de8\u57df\u89c4\u5219\u6240\u4ee5\u53c2\u6570\u90fd\u53ef\u4ee5\u4fee\u6539\n\n\n\n### \u5220\u9664\u89c4\u5219\n\n\u5df2\u6dfb\u52a0\u7684\u89c4\u5219\u4e0d\u518d\u9700\u8981\u65f6\uff0c\u53ef\u4ee5\u5220\u9664\u3002\n\n\u76ee\u524d\u53ea\u652f\u6301\u5355\u6761\u548c\u6279\u91cf\u5220\u9664\u3002\n\n- \u5728\u89c4\u5219\u5217\u8868\u4e2d\uff0c\u70b9\u51fb\u4efb\u4e00\u884c\u300c\u64cd\u4f5c\u300d\u5217\u7684\u300c\u5220\u9664\u300d\u56fe\u6807\uff0c\u5373\u53ef\u5220\u9664\u6389\u6b64\u89c4\u5219\n- \u70b9\u51fb\u300c\u8de8\u57df\u8bbe\u7f6e\u300d\u6846\u4e2d\u7684\u300c\u6e05\u7a7a\u5168\u90e8\u89c4\u5219\u300d\u6309\u94ae\uff0c\u53ef\u4ee5\u628a\u6240\u6709\u89c4\u5219\u5220\u9664\n\n"}