From 292eb992f46830ef03c54d280b2031f03fe2eb4f Mon Sep 17 00:00:00 2001
From: Imgodmaoyouknow <55078436+Imgodmaoyouknow@users.noreply.github.com>
Date: Wed, 22 Apr 2026 15:56:03 +0800
Subject: [PATCH] fix(panel): set ALPN to h3 when switching to Hysteria
 protocol (#4076)

- Automatically explicitly set ALPN to ['h3'] for Hysteria to prevent QUIC handshake mismatch.
---
 web/assets/js/model/inbound.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/web/assets/js/model/inbound.js b/web/assets/js/model/inbound.js
index 1cef368b..1dd4411f 100644
--- a/web/assets/js/model/inbound.js
+++ b/web/assets/js/model/inbound.js
@@ -1396,6 +1396,8 @@ class Inbound extends XrayCommonClass {
         if (protocol === Protocols.HYSTERIA) {
             this.stream.network = 'hysteria';
             this.stream.security = 'tls';
+            // Hysteria runs over QUIC and must not inherit TCP TLS ALPN defaults.
+            this.stream.tls.alpn = [ALPN_OPTION.H3];
         }
     }
 
@@ -2863,4 +2865,4 @@ Inbound.TunSettings = class extends Inbound.Settings {
             autoOutboundsInterface: this.autoOutboundsInterface,
         };
     }
-};
\ No newline at end of file
+};