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当我尝试从此 repo https://codesandbox.io/s/react-file-reader-forked-3oszl?file=/src/index.js中的反应文件查看器时,我能够查看来自在线示例的文件,但不能查看共享点url,当我这样做时,我收到了 cros 错误

在 'https://sharepoint.com/sites/DevL/Clients/AVM001103/Forms/AllItems.aspx?id=%2Fsites%2FDevL%2FClients%2FAVM001103%2FResults%2Edocx&parent=%2Fsites%2FDevL%2FClients%2FAVM001103 访问 XMLHttpRequest ' from origin 'https://w2hpd.csb.app' 已被 CORS 策略阻止:请求的资源上不存在“Access-Control-Allow-Origin”标头。

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