2 files changed, 7 insertions, 10 deletions
diff --git a/src/js/fullscreen.js b/src/js/fullscreen.js
index cd2d8ac6..000ba706 100644
--- a/src/js/fullscreen.js
+++ b/src/js/fullscreen.js
@@ -19,7 +19,7 @@ function onChange() {
     }
 
     // Trigger an event
-    utils.dispatchEvent(this.target, this.active ? 'enterfullscreen' : 'exitfullscreen', true);
+    utils.dispatchEvent.call(this.player, this.target, this.active ? 'enterfullscreen' : 'exitfullscreen', true);
 
     // Trap focus in container
     if (!browser.isIos) {
diff --git a/src/js/utils.js b/src/js/utils.js
index d46a7601..ebfb9c96 100644
--- a/src/js/utils.js
+++ b/src/js/utils.js
@@ -9,9 +9,6 @@ import { providers } from './types';
 const utils = {
     // Check variable types
     is: {
-        plyr(input) {
-            return this.instanceof(input, window.Plyr);
-        },
         object(input) {
             return this.getConstructor(input) === Object;
         },
@@ -31,22 +28,22 @@ const utils = {
             return !this.nullOrUndefined(input) && Array.isArray(input);
         },
         weakMap(input) {
-            return this.instanceof(input, window.WeakMap);
+            return this.instanceof(input, WeakMap);
         },
         nodeList(input) {
-            return this.instanceof(input, window.NodeList);
+            return this.instanceof(input, NodeList);
         },
         element(input) {
-            return this.instanceof(input, window.Element);
+            return this.instanceof(input, Element);
         },
         textNode(input) {
             return this.getConstructor(input) === Text;
         },
         event(input) {
-            return this.instanceof(input, window.Event);
+            return this.instanceof(input, Event);
         },
         cue(input) {
-            return this.instanceof(input, window.TextTrackCue) || this.instanceof(input, window.VTTCue);
+            return this.instanceof(input, TextTrackCue) || this.instanceof(input, VTTCue);
         },
         track(input) {
             return this.instanceof(input, TextTrack) || (!this.nullOrUndefined(input) && this.string(input.kind));
@@ -547,7 +544,7 @@ const utils = {
         const event = new CustomEvent(type, {
             bubbles,
             detail: Object.assign({}, detail, {
-                plyr: utils.is.plyr(this) ? this : null,
+                plyr: this,
             }),
         });