From 748771dc33f5dfebfa2b07b7f552645f8f058996 Mon Sep 17 00:00:00 2001
From: Peter Stockings <pstockings@jadeworld.com>
Date: Sat, 26 Jul 2025 21:34:33 +1000
Subject: [PATCH] Create isolated event listeners

---
 deno_server.ts | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/deno_server.ts b/deno_server.ts
index 6350edf..af14ad3 100644
--- a/deno_server.ts
+++ b/deno_server.ts
@@ -72,12 +72,21 @@ async function handler(req: Request): Promise<Response> {
     } = body;
 
     const executionPromise = new Promise((resolve, reject) => {
-      availableWorker.worker.onmessage = (e) => {
+      const messageHandler = (e) => {
         resolve(e.data);
+        cleanup();
       };
-      availableWorker.worker.onerror = (e) => {
+      const errorHandler = (e) => {
         reject(new Error(`Worker error: ${e.message}`));
+        cleanup();
       };
+      const cleanup = () => {
+        availableWorker.worker.removeEventListener("message", messageHandler);
+        availableWorker.worker.removeEventListener("error", errorHandler);
+      };
+
+      availableWorker.worker.addEventListener("message", messageHandler);
+      availableWorker.worker.addEventListener("error", errorHandler);
     });
 
     const timeoutPromise = new Promise((_, reject) =>