From 3b1e9d22a173e16a6186f2ccbb033ccb6c86fe6a Mon Sep 17 00:00:00 2001
From: elasim <lequntus@hotmail.com>
Date: Wed, 12 May 2021 01:05:04 +0900
Subject: [PATCH] fix: make inline workers work from IE/Edge legacy

Schedule object url revoking when setImmediate is available.
---
 src/runtime/inline.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/runtime/inline.js b/src/runtime/inline.js
index a4008dc..1a6c9e8 100644
--- a/src/runtime/inline.js
+++ b/src/runtime/inline.js
@@ -32,7 +32,13 @@ module.exports = (content, workerConstructor, workerOptions, url) => {
         workerOptions
       );
 
-      URL.revokeObjectURL(objectURL);
+      // URL.revokeObjectUrl shouldn't be called immediately after Worker creation on IE and Edge legacy.
+      // Worker will be forked but the script will not be executed and there are no error event or runtime exceptions for this.
+      if (globalScope.setImmediate) {
+        globalScope.setImmediate(() => URL.revokeObjectURL(objectURL));
+      } else {
+        URL.revokeObjectURL(objectURL);
+      }
 
       return worker;
     } catch (e) {