has been blocked by CORS policy: Response to preflight request doesn‘t pass access control check

回答: "has been blocked by CORS policy: Response to preflight request doesn't pass access control check"是一个常见的跨域访问问题。它意味着在请求资源时，由于缺少'Access-Control-Allow-Origin'头部，在跨域请求的响应中被阻止。解决这个问题的方法是在响应的头部中添加'Access-Control-Allow-Origin'头部，指定允许访问的域名或通配符"*"来解决跨域访问问题。你可以参考提供的链接中的解决方案来解决这个问题。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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