From 6b0dce168df01df02219f64dbd6f9b73eec1fb2a Mon Sep 17 00:00:00 2001
From: Don <donmckenzie@deephaven.io>
Date: Tue, 6 Feb 2024 11:41:53 -0500
Subject: [PATCH] feat: disable "Changes you made may not be saved." prompt in
 dev mode (#1775)

When developing, the prompt to reload is a pretty annoying feature. I am
not worried about lost query progress in dev mode, auto-refresh is more
important.
---
 packages/code-studio/src/main/AppMainContainer.tsx | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/packages/code-studio/src/main/AppMainContainer.tsx b/packages/code-studio/src/main/AppMainContainer.tsx
index e79f11465..b2f88b6b2 100644
--- a/packages/code-studio/src/main/AppMainContainer.tsx
+++ b/packages/code-studio/src/main/AppMainContainer.tsx
@@ -165,11 +165,14 @@ export class AppMainContainer extends Component<
   AppMainContainerState
 > {
   static handleWindowBeforeUnload(event: BeforeUnloadEvent): void {
-    event.preventDefault();
-    // returnValue is required for beforeReload event prompt
-    // https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers/onbeforeunload#example
-    // eslint-disable-next-line no-param-reassign
-    event.returnValue = '';
+    // in development, allow auto-reload
+    if (import.meta.env.PROD) {
+      event.preventDefault();
+      // returnValue is required for beforeReload event prompt
+      // https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers/onbeforeunload#example
+      // eslint-disable-next-line no-param-reassign
+      event.returnValue = '';
+    }
   }
 
   static hydrateConsole(