From ffcaf382a277bd980771d36ce915cc451ef30b25 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 26 Jul 2023 11:18:59 +0530
Subject: [PATCH] Fix visit content server in browser not working when the
 content server is configured to listen on an IPv6 interface. Fixes #2023737
 [[Bug] When set content server to listen on IPv4 and IPv6 address, Calibre
 won't launch broswer when Click "Visit content server in
 broswer"](https://bugs.launchpad.net/calibre/+bug/2023737)

---
 src/calibre/gui2/actions/device.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/gui2/actions/device.py b/src/calibre/gui2/actions/device.py
index 2921b1d8e2..9779e05cad 100644
--- a/src/calibre/gui2/actions/device.py
+++ b/src/calibre/gui2/actions/device.py
@@ -23,6 +23,8 @@ def local_url_for_content_server():
     protocol = 'https' if opts.ssl_certfile and opts.ssl_keyfile else 'http'
     prefix = opts.url_prefix or ''
     port = opts.port
+    if ':' in interface:
+        interface = f'[{interface}]'
     return f'{protocol}://{interface}:{port}{prefix}'