From f3a4ab912860d26c5dc8777fabe96071af216d1f Mon Sep 17 00:00:00 2001
From: Derek Christensen <derek@heavyd.net>
Date: Wed, 6 Mar 2024 08:12:11 -0700
Subject: [PATCH] Fix worker coreURL for ESM (#657)

---
 packages/ffmpeg/src/worker.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/ffmpeg/src/worker.ts b/packages/ffmpeg/src/worker.ts
index f17a444..0746271 100644
--- a/packages/ffmpeg/src/worker.ts
+++ b/packages/ffmpeg/src/worker.ts
@@ -54,7 +54,7 @@ const load = async ({
     // when web worker type is `classic`.
     importScripts(_coreURL);
   } catch {
-    if (!_coreURL) _coreURL = CORE_URL.replace('/umd/', '/esm/');
+    if (!_coreURL || _coreURL === CORE_URL) _coreURL = CORE_URL.replace('/umd/', '/esm/');
     // when web worker type is `module`.
     (self as WorkerGlobalScope).createFFmpegCore = (
       (await import(