Add guard rail to dropdown keyhandler

twbs · Feb 3, 2023 · cedd335 · cedd335
1 parent c735b2e
commit cedd335
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/js/src/dropdown.js b/js/src/dropdown.js
@@ -416,6 +416,10 @@ class Dropdown extends BaseComponent {
         SelectorEngine.next(this, SELECTOR_DATA_TOGGLE)[0] ||
         SelectorEngine.findOne(SELECTOR_DATA_TOGGLE, event.delegateTarget.parentNode))
 
+    if (getToggleButton === null) {
+      return
+    }
+
     const instance = Dropdown.getOrCreateInstance(getToggleButton)
 
     if (isUpOrDownEvent) {