diff --git a/.gitignore b/.gitignore
index f6d5eed..23aad1c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea
 .vscode
-node_modules
\ No newline at end of file
+node_modules
+/.history
diff --git a/main.go b/main.go
index 362a92e..7ca2583 100644
--- a/main.go
+++ b/main.go
@@ -240,6 +240,15 @@ func (rtc *WebRTC) GetAnswer() ([]byte, error) {
 
 func run() {
 	http.HandleFunc("/webrtc/play", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Access-Control-Allow-Credentials", "true")
+		origin := r.Header["Origin"]
+		if len(origin) == 0 {
+			w.Header().Set("Access-Control-Allow-Origin", "*")
+		} else {
+			w.Header().Set("Access-Control-Allow-Origin", origin[0])
+		}
+
+		w.Header().Set("Content-Type", "application/json")
 		streamPath := r.URL.Query().Get("streamPath")
 		var offer SessionDescription
 		var rtc WebRTC