最近接触go web编程 ,用chrome请求本地server的时候,回调里面的某些打印被执行了两次。抓包之后发现,chrome发出了两个请求: GET / HTTP/1.1 GET /favicon.ico HTTP/1.1 https://stackoverflow.com/questions/47240474/http-listenandserve-handler-function-executed-twice-on-port-80