From 9536bc072d3c62777129bf3f3ea526775bbfed0a Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan.ytdlp@gmail.com>
Date: Mon, 26 Jul 2021 01:10:06 +0530
Subject: [PATCH] [bilibili] Improve `_VALID_URL`

---
 yt_dlp/extractor/bilibili.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/yt_dlp/extractor/bilibili.py b/yt_dlp/extractor/bilibili.py
index 1fe6a5c18c..92c9882744 100644
--- a/yt_dlp/extractor/bilibili.py
+++ b/yt_dlp/extractor/bilibili.py
@@ -37,7 +37,7 @@ class BiliBiliIE(InfoExtractor):
                                 video/[aA][vV]|
                                 anime/(?P<anime_id>\d+)/play\#
                             )(?P<id>\d+)|
-                            video/[bB][vV](?P<id_bv>[^/?#&]+)
+                            (s/)?video/[bB][vV](?P<id_bv>[^/?#&]+)
                         )
                         (?:/?\?p=(?P<page>\d+))?
                     '''