diff --git a/index.html b/index.html
index 15f9294..13d7b57 100644
--- a/index.html
+++ b/index.html
@@ -2,6 +2,7 @@
 <html lang="en">
 	<head>
 		<meta charset="UTF-8" />
+		<meta http-equiv="Content-Security-Policy" content="default-src 'self'; connect-src 'self' http://localhost:33334/ ws://localhost:9724/event_source;">
 		<link rel="preconnect" href="https://fonts.googleapis.com" />
 		<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
 		<link
