--- a/dom/media/test/eme.js
+++ b/dom/media/test/eme.js
@@ -239,29 +239,27 @@ function LoadTest(test, elem, token, loa
   }
 
   var ms = new MediaSource();
   elem.src = URL.createObjectURL(ms);
 
   return new Promise(function (resolve, reject) {
     ms.addEventListener("sourceopen", function () {
       Log(token, "sourceopen");
-      return Promise.all(test.tracks.map(function(track) {
+      Promise.all(test.tracks.map(function(track) {
         return AppendTrack(test, ms, track, token, loadParams);
       })).then(function() {
         if (loadParams && loadParams.noEndOfStream) {
           Log(token, "Tracks loaded");
         } else {
           Log(token, "Tracks loaded, calling MediaSource.endOfStream()");
           ms.endOfStream();
         }
         resolve();
-      }).catch(function() {
-        Log(token, "error while loading tracks");
-      });
+      }).catch(reject);
     }, {once: true});
   });
 }
 
 function EMEPromise() {
   var self = this;
   self.promise = new Promise(function(resolve, reject) {
     self.resolve = resolve;