From c4e2bd094a5a1df86e2ec699ad92ea90981512a8 Mon Sep 17 00:00:00 2001
From: larabr <larabr+github@protonmail.com>
Date: Wed, 9 Oct 2024 15:19:41 +0200
Subject: [PATCH] WebSocketsManager`: send periodic ping over WebSockets to
 prevent connection closure for inactivity

---
 packages/dev-server-core/src/web-sockets/WebSocketsManager.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/dev-server-core/src/web-sockets/WebSocketsManager.ts b/packages/dev-server-core/src/web-sockets/WebSocketsManager.ts
index cb04c7089..18cd5f788 100644
--- a/packages/dev-server-core/src/web-sockets/WebSocketsManager.ts
+++ b/packages/dev-server-core/src/web-sockets/WebSocketsManager.ts
@@ -29,7 +29,10 @@ export class WebSocketsManager extends EventEmitter<Events> {
     });
     this.webSocketServer.on('connection', webSocket => {
       this.openSockets.add(webSocket);
+      // Ping periodically to prevent socket from being closed with error status 1006 due to inactivity e.g. when testing on Browserstack
+      const pingInterval = setInterval(() => { webSocket.ping() }, 10000);
       webSocket.on('close', () => {
+        clearInterval(pingInterval);
         this.openSockets.delete(webSocket);
       });