cleanup

.gitignore

@@ -2,4 +2,5 @@
 /.rpt2_cache/
 package-lock.json
 dist
-yarn.lock
+yarn.lock
+yarn-error.log

src/helpers.js

@@ -30,7 +30,9 @@ export const tabIndexByName = tab => {
 export const invertNumArray = show_tabs => {
   if (show_tabs && show_tabs.length) {
     const total_tabs = [];
-    for (let i = 0; i < ha_elements().tabs.length; i += 1) total_tabs.push(i);
+    const haElem = ha_elements();
+    if (!haElem || !haElem.tabs) return [];
+    for (let i = 0; i < haElem.tabs.length; i += 1) total_tabs.push(i);
     return total_tabs.filter(el => !show_tabs.includes(el));
   }
 };

src/style-header.js

@@ -145,6 +145,7 @@ export const styleHeader = (config, ch, haElem = ha_elements()) => {
   if (config.tab_icons && headerType.tabs.length) {
     for (const tab in config.tab_icons) {
       const index = tabIndexByName(tab);
+      if (!headerType.tabs[index]) continue;
       const haIcon = headerType.tabs[index].querySelector('ha-icon');
       if (!config.tab_icons[tab]) haIcon.icon = haElem.lovelace.config.views[index].icon;
       else haIcon.icon = config.tab_icons[tab];