// +build go1.8 package handlers import ( "fmt" "net/http" ) type loggingResponseWriter interface { commonLoggingResponseWriter http.Pusher } func (l *responseLogger) Push(target string, opts *http.PushOptions) error { p, ok := l.w.(http.Pusher) if !ok { return fmt.Errorf("responseLogger does not implement http.Pusher") } return p.Push(target, opts) }