set active tab from URL parameter

Author: titusfortner

static/js/tabpane-persist.js

@@ -105,12 +105,23 @@ function tdRegisterTabClickHandler(tabs) {
   });
 }
 
+function getActiveTabFromURL() {
+  const urlParams = new URLSearchParams(window.location.search);
+  return urlParams.get('tab').toLowerCase();
+}
+
 // Register listeners and activate tabs
 
 window.addEventListener('DOMContentLoaded', () => {
   if (!_tdSupportsLocalStorage()) return;
 
   var allTabsInThisPage = document.querySelectorAll(_tdPersistCssSelector());
   tdRegisterTabClickHandler(allTabsInThisPage);
-  tdGetAndActivatePersistedTabs(allTabsInThisPage);
+
+  const activeTabKeyFromURL = getActiveTabFromURL();
+  if (activeTabKeyFromURL) {
+    tdActivateTabsWithKey(activeTabKeyFromURL);
+  } else {
+    tdGetAndActivatePersistedTabs(allTabsInThisPage);
+  }
 });