worker: export workerData to ESM workers

Fixes: https://github.com/nodejs/node/issues/25765

PR-URL: https://github.com/nodejs/node/pull/25768
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/worker_threads.js b/lib/worker_threads.js
index 828edb6bff..2fe1a87246 100644
--- a/lib/worker_threads.js
+++ b/lib/worker_threads.js
@@ -17,5 +17,6 @@ module.exports = {
   MessageChannel,
   threadId,
   Worker,
-  parentPort: null
+  parentPort: null,
+  workerData: null,
 };