测试签名是一样的，调H5支付一直提示签名错误，怎么解决 [图片] [图片]

XMLHttpRequest cannot load https://api.mch.weixin.qq.com/pay/unifiedorder. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8080' is therefore not allowed access. [图片]