fix(prop-filler): obj may have null prototype (#399)

* fix(prop-filler): obj may have null prototype * fix(prop-filler): missing return value
redgeoff · Jun 4, 2021 · 65c09c9 · 65c09c9
1 parent 5450e16
commit 65c09c9
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/compiler/prop-filler.js b/src/compiler/prop-filler.js
@@ -34,7 +34,10 @@ export default class PropFiller {
         hasProperty = true;
       } else {
         nestedObj = obj[names[0]];
-        hasProperty = obj.hasOwnProperty(names[0]);
+
+        // We cannot just use `obj.hasOwnProperty()` here as obj may have a null prototype, e.g.
+        // `obj = Object.create(null)`
+        hasProperty = Object.prototype.hasOwnProperty.call(obj, names[0]);
       }
 
       if (names.length > 1) {