Also use JSON in say-yes.go

support/say-yes.go

@@ -8,7 +8,7 @@ import (
 
 func main() {
 	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		fmt.Fprint(w, "GL_ID=")
+		fmt.Fprint(w, `{"GL_ID":""}`)
 	})
 
 	log.Fatal(http.ListenAndServe("localhost:8080", nil))