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docs/dist/js/umd/carousel.js

@@ -136,6 +136,14 @@
             this._slide(Direction.NEXT);
           }
         }
+      }, {
+        key: 'nextWhenVisible',
+        value: function nextWhenVisible() {
+          // Don't call next when the page isn't visible
+          if (!document.hidden) {
+            this.next();
+          }
+        }
       }, {
         key: 'prev',
         value: function prev() {
@@ -171,7 +179,7 @@
           }
 
           if (this._config.interval && !this._isPaused) {
-            this._interval = setInterval($.proxy(this.next, this), this._config.interval);
+            this._interval = setInterval($.proxy(document.visibilityState ? this.nextWhenVisible : this.next, this), this._config.interval);
           }
         }
       }, {
@@ -404,7 +412,10 @@
 
             if (typeof config === 'number') {
               data.to(config);
-            } else if (action) {
+            } else if (typeof action === 'string') {
+              if (data[action] === undefined) {
+                throw new Error('No method named "' + action + '"');
+              }
               data[action]();
             } else if (_config.interval) {
               data.pause();