CORS跨域问题：
升级谷歌浏览器最新chrome94版本后，提示Access to XMLHttpRequest at http://localhost:xxxx/api from origin http://xxx.xxx.com:xxx has been blocked by CORS policy: The request client is not a secure context and the resource is in more-private address space local.
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解决办法：
打开浏览器，复制
chrome://flags/到浏览器地址栏搜索
Block insecure private network requests，将设置为Disabled，然后Relaunch就好了。
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