解决浏览器跨域问题
使用谷歌打开,报了如下跨域问题
Access to XMLHttpRequest at 'http://***:19196/OpenDevice&t=0.8008294784459418' from origin 'http://**.cn' has been blocked by CORS policy: The request client is not a secure context and the resource is in more-private address space `local`
小于 1 分钟