1 files changed, 11 insertions, 0 deletions
diff --git a/extensions/webidl/00_webidl.js b/extensions/webidl/00_webidl.js
index 3e6dc95eb..8260cf214 100644
--- a/extensions/webidl/00_webidl.js
+++ b/extensions/webidl/00_webidl.js
@@ -582,6 +582,17 @@
     converters.ByteString,
   );
 
+  converters["sequence<USVString>"] = createSequenceConverter(
+    converters.USVString,
+  );
+  converters["sequence<sequence<USVString>>"] = createSequenceConverter(
+    converters["sequence<USVString>"],
+  );
+  converters["record<USVString, USVString>"] = createRecordConverter(
+    converters.USVString,
+    converters.USVString,
+  );
+
   converters["sequence<DOMString>"] = createSequenceConverter(
     converters.DOMString,
   );