From ec4be1a4e764e53bb81519055c0d5483152eeca7 Mon Sep 17 00:00:00 2001
From: Hoshino Lina <lina@lina.yt>
Date: Tue, 14 Apr 2026 18:29:58 +0900
Subject: [PATCH] Do not try to create the browser before init

CEF is initialized in a browser manager thread on Windows and Linux,
which happens asynchronously. The graphics tick function may be
called before CEF initialization completes, which leads to
asserts and other issues. Ensure this does not happen by checking
for CEF init completion.
---
 obs-browser-source.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/obs-browser-source.cpp b/obs-browser-source.cpp
index 6e80fbce8..a91679893 100644
--- a/obs-browser-source.cpp
+++ b/obs-browser-source.cpp
@@ -43,6 +43,7 @@
 
 using namespace std;
 
+extern os_event_t *cef_started_event;
 extern bool QueueCEFTask(std::function<void()> task);
 
 static mutex browser_list_mutex;
@@ -549,6 +550,9 @@ void BrowserSource::Update(obs_data_t *settings)
 
 void BrowserSource::Tick()
 {
+	if (os_event_try(cef_started_event) != 0)
+		return;
+
 	if (create_browser && CreateBrowser())
 		create_browser = false;
 #if defined(ENABLE_BROWSER_SHARED_TEXTURE)