优化跨域配置，支持同域的前后端分离部署

src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMHttpHookListener.java

@@ -112,6 +112,7 @@ public class ZLMHttpHookListener {
      * 服务器定时上报时间，上报间隔可配置，默认10s上报一次
      */
     @ResponseBody
+    
     @PostMapping(value = "/on_server_keepalive", produces = "application/json;charset=UTF-8")
     public HookResult onServerKeepalive(@RequestBody OnServerKeepaliveHookParam param) {
 
@@ -135,6 +136,7 @@ public class ZLMHttpHookListener {
      * 播放器鉴权事件，rtsp/rtmp/http-flv/ws-flv/hls的播放都将触发此鉴权事件。
      */
     @ResponseBody
+    
     @PostMapping(value = "/on_play", produces = "application/json;charset=UTF-8")
     public HookResult onPlay(@RequestBody OnPlayHookParam param) {
         if (logger.isDebugEnabled()) {