From ede39a6f64311e4c9745b5f3cb526628242cb66b Mon Sep 17 00:00:00 2001
From: Jason Siefken <siefkenj@gmail.com>
Date: Thu, 15 Jun 2023 21:23:12 -0500
Subject: [PATCH 1/2] Disable hot reloading if in a WebWorker

---
 packages/plugin-react/src/fast-refresh.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/plugin-react/src/fast-refresh.ts b/packages/plugin-react/src/fast-refresh.ts
index b6114a352..f8c3a7991 100644
--- a/packages/plugin-react/src/fast-refresh.ts
+++ b/packages/plugin-react/src/fast-refresh.ts
@@ -31,10 +31,11 @@ window.__vite_plugin_react_preamble_installed__ = true
 const header = `
 import RefreshRuntime from "${runtimePublicPath}";
 
+const inWebWorker = typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope;
 let prevRefreshReg;
 let prevRefreshSig;
 
-if (import.meta.hot) {
+if (import.meta.hot && !inWebWorker) {
   if (!window.__vite_plugin_react_preamble_installed__) {
     throw new Error(
       "@vitejs/plugin-react can't detect preamble. Something is wrong. " +

From 29863fa1c6d8c5654e11235d6ed89cd0cf350555 Mon Sep 17 00:00:00 2001
From: Jason Siefken <siefkenj@gmail.com>
Date: Mon, 19 Jun 2023 13:48:15 -0400
Subject: [PATCH 2/2] Add webwork check to footer code

---
 packages/plugin-react/src/fast-refresh.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/plugin-react/src/fast-refresh.ts b/packages/plugin-react/src/fast-refresh.ts
index f8c3a7991..e80a4e628 100644
--- a/packages/plugin-react/src/fast-refresh.ts
+++ b/packages/plugin-react/src/fast-refresh.ts
@@ -52,7 +52,7 @@ if (import.meta.hot && !inWebWorker) {
 }`.replace(/\n+/g, '')
 
 const footer = `
-if (import.meta.hot) {
+if (import.meta.hot && !inWebWorker) {
   window.$RefreshReg$ = prevRefreshReg;
   window.$RefreshSig$ = prevRefreshSig;