Merge pull request #2586 from edx/alex/fix_position_video

Fix for saving video in studio when saving position. BLD-834

common/lib/xmodule/xmodule/js/spec/video/initialize_spec.js

@@ -110,6 +110,20 @@ function (Initialize) {
                 });
             });
 
+            it('data contains position 0, async is true', function () {
+                itSpec({
+                    asyncVal: true,
+                    speedVal: undefined,
+                    positionVal: 0,
+                    data: {
+                        saved_video_position: 0
+                    },
+                    ajaxData: {
+                        saved_video_position: Time.formatFull(Math.round(0))
+                    }
+                });
+            });
+
             return;
 
             function itSpec(value) {

common/lib/xmodule/xmodule/js/src/video/01_initialize.js

@@ -674,6 +674,7 @@ function (VideoPlayer, VideoStorage) {
     }
 
     function saveState(async, data) {
+
         if (!($.isPlainObject(data))) {
             data = {
                 saved_video_position: this.videoPlayer.currentTime
@@ -684,7 +685,7 @@ function (VideoPlayer, VideoStorage) {
             this.storage.setItem('speed', data.speed, true);
         }
 
-        if (data.saved_video_position) {
+        if (data.hasOwnProperty('saved_video_position')) {
             this.storage.setItem('savedVideoPosition', data.saved_video_position, true);
 
             data.saved_video_position = Time.formatFull(data.saved_video_position);