perf(utils): only check selector on 'rule' nodes

anandthakker · Jul 7, 2023 · d9c6183 · d9c6183
1 parent 1275026
commit d9c6183
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/utils/util.js b/utils/util.js
@@ -49,8 +49,8 @@ export function performFeatureCheck(check, candidate) {
  * @return {(rule:import('postcss').ChildNode) => boolean}
  */
 export function checkSelector(selector) {
-  // @ts-ignore rule.selector can be `undefined`
-  return (rule) => performFeatureCheck(selector, rule.selector);
+  return (rule) => rule.type === 'rule'
+   && performFeatureCheck(selector, rule.selector);
 }
 
 /**