Merge pull request #4 from ourfor-pp/master

增加跨域处理&&修复UDP占用持续增长的bug

.gitignore

@@ -1,3 +1,4 @@
 .idea
 .vscode
 node_modules
+/.history

main.go

@@ -140,6 +140,7 @@ func (rtc *WebRTC) Play(streamPath string) bool {
 		switch connectionState {
 		case ICEConnectionStateDisconnected:
 			sub.Close()
+			rtc.Close()
 		case ICEConnectionStateConnected:
 
 			//rtc.videoTrack = rtc.GetSenders()[0].Track()
@@ -240,6 +241,15 @@ 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