diff --git a/src/ts/plugins/embedworker.ts b/src/ts/plugins/embedworker.ts
index 6929b000..b2eef129 100644
--- a/src/ts/plugins/embedworker.ts
+++ b/src/ts/plugins/embedworker.ts
@@ -75,6 +75,7 @@ const whitelist = [
     "Element",
     "Text",
     "Comment",
+    'onmessage'
 ]
 
 const evaluation = globaly.eval