2 files changed, 5 insertions, 0 deletions
diff --git a/runtime/js/11_workers.js b/runtime/js/11_workers.js
index e04690005..f5548d8d1 100644
--- a/runtime/js/11_workers.js
+++ b/runtime/js/11_workers.js
@@ -22,6 +22,7 @@ import {
   ErrorEvent,
   EventTarget,
   MessageEvent,
+  setIsTrusted,
 } from "ext:deno_web/02_event.js";
 import {
   deserializeJsMessageData,
@@ -187,6 +188,7 @@ class Worker extends EventTarget {
           cancelable: false,
           data: err,
         });
+        setIsTrusted(event, true);
         this.dispatchEvent(event);
         return;
       }
@@ -198,6 +200,7 @@ class Worker extends EventTarget {
           (t) => ObjectPrototypeIsPrototypeOf(MessagePortPrototype, t),
         ),
       });
+      setIsTrusted(event, true);
       this.dispatchEvent(event);
     }
   };
diff --git a/runtime/js/99_main.js b/runtime/js/99_main.js
index 483ca9012..dc6839646 100644
--- a/runtime/js/99_main.js
+++ b/runtime/js/99_main.js
@@ -154,6 +154,7 @@ async function pollForMessages() {
           ObjectPrototypeIsPrototypeOf(messagePort.MessagePortPrototype, t),
       ),
     });
+    event.setIsTrusted(msgEvent, true);
 
     try {
       globalDispatchEvent(msgEvent);
@@ -167,6 +168,7 @@ async function pollForMessages() {
         error: e,
       });
 
+      event.setIsTrusted(errorEvent, true);
       globalDispatchEvent(errorEvent);
       if (!errorEvent.defaultPrevented) {
         throw e;