打了个测试包，之前可以正常使用，五一后提示request:fail abort statusCode:-1 Failed to connect to localhost/127.0.0.1:80

手机模拟器测试正式环境{"errMsg":"request:fail abort statusCode:-1 Failed to connect to localhost/127.0.0.1:80"，通过电脑h5测试正式接口报错has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource，接口拿出来单独测试没有发现问题。nginx那一套上面还有vue项目上也正常使用，有大佬遇见类似问题吗