1 files changed, 14 insertions, 2 deletions
diff --git a/lib/internal/process/worker_thread_only.js b/lib/internal/process/worker_thread_only.js
index b29bc7a390..2171d2b586 100644
--- a/lib/internal/process/worker_thread_only.js
+++ b/lib/internal/process/worker_thread_only.js
@@ -43,12 +43,24 @@ function initializeWorkerStdio() {
   };
 }
 
-function createMessageHandler(port) {
+function createMessageHandler(port, prepareUserCodeExecution) {
   const publicWorker = require('worker_threads');
 
   return function(message) {
     if (message.type === messageTypes.LOAD_SCRIPT) {
-      const { filename, doEval, workerData, publicPort, hasStdin } = message;
+      const {
+        filename,
+        doEval,
+        workerData,
+        publicPort,
+        manifestSrc,
+        manifestURL,
+        hasStdin
+      } = message;
+      if (manifestSrc) {
+        require('internal/process/policy').setup(manifestSrc, manifestURL);
+      }
+      prepareUserCodeExecution();
       publicWorker.parentPort = publicPort;
       publicWorker.workerData = workerData;