问题:下载图片 使用a标签的download 点击之后 跳转新页面 打开了预览图片
hack:
失败:
Origin 'http://localhost:9527' is therefore not allowed access.
has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:9527' is therefore not allowed access.
成功: