From f9c769aee3e0b779dd0435262e1ecba47983865b Mon Sep 17 00:00:00 2001
From: Michel Weststrate <mweststrate@fb.com>
Date: Wed, 22 Dec 2021 03:17:46 -0800
Subject: [PATCH] Fix Metro crash if no origin header is set

Summary:
Changelog: Work-around for missing `origin` header problem https://github.com/facebook/flipper/issues/3189; causing Metro to crash when Flipper tries to connect

Will follow up with separate fix in React Native itself as well

Reviewed By: nikoant

Differential Revision: D33276414

fbshipit-source-id: 34d1510262ac24172ac1c6660799bb755b0f1f11
---
 .../src/devices/metro/metroDeviceManager.tsx                | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/desktop/flipper-server-core/src/devices/metro/metroDeviceManager.tsx b/desktop/flipper-server-core/src/devices/metro/metroDeviceManager.tsx
index 0b7cfe73d..27712a1d8 100644
--- a/desktop/flipper-server-core/src/devices/metro/metroDeviceManager.tsx
+++ b/desktop/flipper-server-core/src/devices/metro/metroDeviceManager.tsx
@@ -65,7 +65,11 @@ export default (flipperServer: FlipperServerImpl) => {
 
     if (await isMetroRunning()) {
       try {
-        const _ws = new WebSocket(METRO_LOGS_ENDPOINT);
+        const _ws = new WebSocket(METRO_LOGS_ENDPOINT, {
+          // temporarily hardcoded URL, as without an origin header, metro will crash, see
+          // https://github.com/facebook/flipper/issues/3189
+          origin: 'http://localhost:3000/flipper',
+        });
 
         _ws.onopen = () => {
           clearTimeout(guard);