{"id":15628,"date":"2023-02-07T19:05:28","date_gmt":"2023-02-07T11:05:28","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=15628"},"modified":"2023-02-07T19:05:32","modified_gmt":"2023-02-07T11:05:32","slug":"network%e4%b8%adxhr%e4%b8%8ejs%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/15628.html","title":{"rendered":"Network\u4e2dXHR\u4e0eJS\u7684\u533a\u522b"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote\">\n<p>Network\u4e2dXHR\u4e0eJS\u7684\u533a\u522b\u662f\uff0cXHR\u4e3b\u8981\u4f5c\u7528\u662f\u7528\u4e8e\u7b5b\u9009\u6240\u6709\u7684XHR\u7c7b\u578b\u7684\u8bf7\u6c42\uff0c\u8fbe\u5230\u53ea\u770bXHR\u7c7b\u578b\u8bf7\u6c42\u7684\u76ee\u7684\uff0cXHR\u4ee3\u8868\u5f53\u524d\u9875\u9762\u6267\u884c\u7684\u65f6\u5019\u7f51\u7edc\u8bf7\u6c42\uff0cJS\u4ee3\u8868\u5f53\u524d\u9875\u9762\u6240\u52a0\u8f7d\u7684JS\u6587\u4ef6\u3002<\/p>\n<\/blockquote>\n\n\n<div class=\"wp-block-image\">\n<figure 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class=\"wp-block-heading\"><strong>fetch<\/strong><strong>\u7684\u4e00\u4e9b\u95ee\u9898<\/strong><\/h3>\n\n\n\n<p>fetch\u662f\u539f\u751fjs\u65b9\u6cd5\uff0c\u6ca1\u6709\u4f7f\u7528XMLHttpRequest\u5bf9\u8c61\uff0c\u4f7f\u7528fetch\u53ef\u4ee5\u4e0d\u7528\u5f15\u7528http\u7684\u7c7b\u5e93\u5373\u53ef\u5b9e\u73b0\u3002\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\uff0c\u5408\u7406\u7684\u65b9\u5f0f\u6765\u8de8\u7f51\u7edc\u5f02\u6b65\u83b7\u53d6\u8d44\u6e90\u3002<\/p>\n\n\n\n<p>1\uff09fetch\u53ea\u5bf9\u7f51\u7edc\u8bf7\u6c42\u62a5\u9519\uff0c\u5bf9400\uff0c500\u90fd\u5f53\u505a\u6210\u529f\u7684\u8bf7\u6c42\uff0c\u670d\u52a1\u5668\u8fd4\u56de 400\uff0c500 \u9519\u8bef\u7801\u65f6\u5e76\u4e0d\u4f1a reject\uff0c\u53ea\u6709\u7f51\u7edc\u9519\u8bef\u8fd9\u4e9b\u5bfc\u81f4\u8bf7\u6c42\u4e0d\u80fd\u5b8c\u6210\u65f6\uff0cfetch \u624d\u4f1a\u88ab reject\u3002<\/p>\n\n\n\n<p>2\uff09fetch\u9ed8\u8ba4\u4e0d\u4f1a\u5e26cookie\uff0c\u9700\u8981\u6dfb\u52a0\u914d\u7f6e\u9879\uff1a fetch(url, 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