1 files changed, 2 insertions, 2 deletions
diff --git a/components/script/dom/webidls/Worker.webidl b/components/script/dom/webidls/Worker.webidl
index 4e55d6fbe00..93df577ec32 100644
--- a/components/script/dom/webidls/Worker.webidl
+++ b/components/script/dom/webidls/Worker.webidl
@@ -14,8 +14,8 @@ interface Worker : EventTarget {
   [Throws] constructor(USVString scriptURL, optional WorkerOptions options = {});
   void terminate();
 
-  [Throws] void postMessage(any message/*, sequence<object> transfer*/);
-  // void postMessage(any message, optional PostMessageOptions options);
+  [Throws] void postMessage(any message, sequence<object> transfer);
+  [Throws] void postMessage(any message, optional PostMessageOptions options = {});
   attribute EventHandler onmessage;
   attribute EventHandler onmessageerror;
 };