Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request.

• vue中关于非简单请求跨域问题，跨域配置可如下：

  devServer: {
        open: false,
        host: '127.0.0.1',
        port: 8080,
        proxy: {
            '/commonUrl': {
                target: `https://commonUrl`, //这里是重点，原本是http请求，后端写的是https，所以这里改为https
                ws: true,
                changeOrigin: true,
                https: true,
                secure: true, // 接受运行在https上，默认不接受
            }
        }
    },