Move handler to established URI. Add CORS wildcard.

cmd/unread/unread.go

@@ -93,6 +93,7 @@ func newMailCounter() *mailCounter {
 }
 
 func (mc *mailCounter) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Access-Control-Allow-Origin", "*")
 	c := map[string]int{}
 	for k, v := range mc.counts {
 		if v != 0 {
@@ -269,7 +270,7 @@ func main() {
 
 	mc := newMailCounter()
 	go func() {
-		http.Handle("/", mc)
+		http.Handle("/unread", mc)
 		err := http.ListenAndServe(*addr, nil)
 		if err != nil {
 			log.Fatal(err)