fix(ads): Fixes media from playing when ads are blocked

package.json

@@ -46,7 +46,15 @@
         "stylelint-selector-bem-pattern": "^2.0.0",
         "uglify-es": "^3.3.8"
     },
-    "keywords": ["HTML5 Video", "HTML5 Audio", "Media Player", "DASH", "Shaka", "WordPress", "HLS"],
+    "keywords": [
+        "HTML5 Video",
+        "HTML5 Audio",
+        "Media Player",
+        "DASH",
+        "Shaka",
+        "WordPress",
+        "HLS"
+    ],
     "repository": {
         "type": "git",
         "url": "git://github.com/sampotts/plyr.git"

src/js/plugins/ads.js

@@ -18,6 +18,7 @@ class Ads {
         this.player = player;
         this.playing = false;
         this.initialized = false;
+        this.blocked = false;
         this.enabled = utils.is.url(player.config.ads.tag);
 
         // Check if a tag URL is provided.
@@ -25,10 +26,15 @@ class Ads {
             return;
         }
 
-        // Check if the Google IMA3 SDK is loaded
+        // Check if the Google IMA3 SDK is loaded or load ourselves.
         if (!utils.is.object(window.google)) {
             utils.loadScript(player.config.urls.googleIMA.api, () => {
                 this.ready();
+            }, () => {
+
+                // Script failed to load or is blocked.
+                this.blocked = true;
+                this.player.debug.log('Ads error: Google IMA SDK failed to load');
             });
         } else {
             this.ready();

src/js/plyr.js

@@ -306,11 +306,12 @@ class Plyr {
     }
 
     /**
-     * Play the media, or play the advertisement
+     * Play the media, or play the advertisement (if they are not blocked)
      */
     play() {
-        if (this.ads.enabled && !this.ads.initialized) {
+        if (this.ads.enabled && !this.ads.initialized && !this.ads.blocked) {
             this.ads.play();
+            return;
         }
 
         this.media.play();

src/js/utils.js

@@ -82,7 +82,7 @@ const utils = {
     },
 
     // Load an external script
-    loadScript(url, callback) {
+    loadScript(url, callback, error) {
         const current = document.querySelector(`script[src="${url}"]`);
 
         // Check script is not already referenced, if so wait for load
@@ -99,6 +99,10 @@ const utils = {
         element.callbacks = element.callbacks || [];
         element.callbacks.push(callback);
 
+        // Error queue
+        element.errors = element.errors || [];
+        element.errors.push(error);
+
         // Bind callback
         if (utils.is.function(callback)) {
             element.addEventListener(
@@ -111,6 +115,16 @@ const utils = {
             );
         }
 
+        // Bind error handling
+        element.addEventListener(
+            'error',
+            event => {
+                element.errors.forEach(err => err.call(null, event));
+                element.errors = null;
+            },
+            false,
+        );
+
         // Set the URL after binding callback
         element.src = url;