avoid error Cannot read property 'urlId' of undefined

nochev · Apr 3, 2017 · 445b3e4 · 445b3e4
1 parent f9bb6b9
commit 445b3e4
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/src/controller/level-controller.js b/src/controller/level-controller.js
@@ -342,8 +342,11 @@ class LevelController extends EventHandler {
   tick() {
     var levelId = this._level;
     if (levelId !== undefined && this.canload) {
-      var level = this._levels[levelId], urlId = level.urlId;
-      this.hls.trigger(Event.LEVEL_LOADING, {url: level.url[urlId], level: levelId, id: urlId});
+      var level = this._levels[levelId];
+      if (level && level.url) {
+        var urlId = level.urlId;
+        this.hls.trigger(Event.LEVEL_LOADING, {url: level.url[urlId], level: levelId, id: urlId});
+      }
     }
   }