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                ## 什么是跨域? 瀏覽器獲取的頁面的域名(IP)和端口號與接口服務器的都一樣,就是同域,反之,就是跨域。 比如我百度的頁面訪問你谷歌的接口,瀏覽器上頁面使用ajax默認是禁止跨域的 <br> ## 如何解決跨域問題? ### jsonp ![](https://box.kancloud.cn/d264d2b6d550f7eba71bd628a212ff78_553x188.png) 通過script標簽來請求另外一個服務器的接口,后端會返回一串函數執行的字符串,比如"jsonpCallback('后端的數據')",最終會執行這個函數并把后端的數據給到函數的形參result <br> ### 代理請求 通過服務器代理請求,因為服務器支持跨域, 比如vue腳手架服務器的proxytable可以讓腳手架幫忙代理請求,返回數據給你瀏覽器, 解決跨域問題 <br> <br> <br> <br> <br> <br> <br> <br> <br> nginx https://www.cnblogs.com/renjing/p/6394725.html
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