From f416b0aed1d5fdec587c765cce7ee4bd45a1d66b Mon Sep 17 00:00:00 2001
From: 3252a8 <3252a8@proton.me>
Date: Mon, 27 Apr 2026 09:34:09 +0300
Subject: [PATCH] fix(webapp): allow oauth.telegram.org iframe in CSP

The Telegram Login Widget embeds oauth.telegram.org in an iframe; without
an explicit frame-src directive it fell back to default-src 'self' and was
blocked. Add frame-src https://oauth.telegram.org so the login flow loads.
---
 bot/app/web/subscription_webapp.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bot/app/web/subscription_webapp.py b/bot/app/web/subscription_webapp.py
index 3d1f96a..d2a10c7 100644
--- a/bot/app/web/subscription_webapp.py
+++ b/bot/app/web/subscription_webapp.py
@@ -348,6 +348,7 @@ async def _security_headers_middleware(request: web.Request, handler):
         (
             "default-src 'self'; "
             f"script-src 'self' 'nonce-{nonce}' 'unsafe-eval' https://telegram.org; "
+            "frame-src https://oauth.telegram.org; "
             "frame-ancestors https://web.telegram.org https://t.me; "
             "style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; "
             "font-src 'self' https://fonts.gstatic.com https://cdn.jsdelivr.net data:; "