未登陆模式调用云开发 uploadFile 上传图片出现跨域问题导致上传失败

Access to XMLHttpRequest at ‘https://cos.ap-shanghai.myqcloud.com/7465-test-o9vva-1300347773/LunBo/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20200929213408.png’ from origin ‘http://localhost:8081’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.