Adds Trusted Types support for reflected boolean properties.

Polymer · Jun 1, 2022 · ce474db · ce474db
1 parent 76e77b6
commit ce474db
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/mixins/properties-changed.js b/lib/mixins/properties-changed.js
@@ -550,7 +550,9 @@ export const PropertiesChanged = dedupingMixin(
     _serializeValue(value) {
       switch (typeof value) {
         case 'boolean':
-          return value ? '' : undefined;
+          return value ?
+              (window.trustedTypes ? window.trustedTypes.emptyScript : '') :
+              undefined;
         default:
           return value != null ? value.toString() : undefined;
       }