Check activeDescendantEl exists to focus or not this element.

Fixes liferay#737
antoniopol06 · May 11, 2017 · 1b9a014 · 1b9a014
1 parent 44b62ee
commit 1b9a014
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/ui/react/src/components/base/widget-focus-manager.js b/src/ui/react/src/components/base/widget-focus-manager.js
@@ -97,7 +97,7 @@
                     // in case of keyboard navigation, because the focused element might be not the first button,
                     // but the div element, which contains the button.
                     if (document.activeElement !== activeDescendantEl && !this.props.focusFirstChild) {
-                        if (this._descendants.indexOf(document.activeElement) === -1) {
+                        if (activeDescendantEl && this._descendants.indexOf(document.activeElement) === -1) {
                             activeDescendantEl.focus();
                         }
                     }