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ajax跨域请求问题:Access to XMLHttpRequest at……has been blocked by CORS policy: Cross origin requests

背景:本地代码调试时,加载本地资源正常,jquery的AJAX请求服务端资源报错。Access to XMLHttpRequest at '***** ’ from origin ‘null’ has been blocked by CORS policy: Cross origin requests.报错信息:跨域请求已被CORS策略阻止。CORS:Cross-origin resource s

#jquery#node.js#javascript
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