avoid JS browser-warning
diff --git a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-focus.ts b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-focus.ts
index beab956..e54fd9c 100644
--- a/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-focus.ts
+++ b/tobago-theme/tobago-theme-standard/src/main/npm/ts/tobago-focus.ts
@@ -98,8 +98,12 @@
private get lastFocusedElement(): HTMLElement {
const lastFocusId: string = this.hiddenInput.value;
- const root = this.getRootNode() as ShadowRoot | Document;
- return root.getElementById(lastFocusId);
+ if (lastFocusId) {
+ const root = this.getRootNode() as ShadowRoot | Document;
+ return root.getElementById(lastFocusId);
+ } else {
+ return null;
+ }
}
private get hiddenInput(): HTMLInputElement {
