Merge pull request #5701 from Polymer/trusted-types-reflected-boolean…

…-properties Adds Trusted Types support for reflected boolean properties.
Polymer · Jun 2, 2022 · c829815 · c829815
2 parents 76e77b6 + d69041c
commit c829815
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/lib/mixins/properties-changed.js b/lib/mixins/properties-changed.js
@@ -531,7 +531,13 @@ export const PropertiesChanged = dedupingMixin(
       if (str === undefined) {
         node.removeAttribute(attribute);
       } else {
-        node.setAttribute(attribute, str);
+        node.setAttribute(
+            attribute,
+            // Closure's type for `setAttribute`'s second parameter incorrectly
+            // excludes `TrustedScript`.
+            (str === '' && window.trustedTypes) ?
+                /** @type {?} */ (window.trustedTypes.emptyScript) :
+                str);
       }
     }