ISTWCMS-5656: fixing js for tabs

src/patterns/04-components/tabs/tabs.js

@@ -50,13 +50,10 @@
             .removeAttribute('hidden');
         }
 
-        window.addEventListener('DOMContentLoaded', () => {
-          const tabs = document.querySelectorAll('[role="tab"]');
-          const tabList = document.querySelector('[role="tablist"]');
+        const tabs = document.querySelectorAll('[role="tab"]');
+        const tabList = document.querySelector('[role="tablist"]');
 
-          if (tabs.length === 0) {
-            return;
-          }
+        if (tabs.length !== 0) {
 
           // Add a click event handler to each tab.
           tabs.forEach(tab => {
@@ -91,7 +88,7 @@
               tabs[tabFocus].focus();
             }
           });
-        });
+        }
       });
     }
   };