From 1c45ff5572e0844b2ad26c2c0d477edc81e6b5b0 Mon Sep 17 00:00:00 2001
From: tsia <github@tsia.de>
Date: Mon, 2 Mar 2020 19:27:40 +0100
Subject: [PATCH] [vimeo] Fix subtitles URLs (#24209)

---
 youtube_dl/extractor/vimeo.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/youtube_dl/extractor/vimeo.py b/youtube_dl/extractor/vimeo.py
index 1da4ced96..8cd611e1e 100644
--- a/youtube_dl/extractor/vimeo.py
+++ b/youtube_dl/extractor/vimeo.py
@@ -33,6 +33,7 @@ from ..utils import (
     unified_timestamp,
     unsmuggle_url,
     urlencode_postdata,
+    urljoin,
     unescapeHTML,
 )
 
@@ -191,7 +192,7 @@ class VimeoBaseInfoExtractor(InfoExtractor):
             for tt in text_tracks:
                 subtitles[tt['lang']] = [{
                     'ext': 'vtt',
-                    'url': 'https://vimeo.com' + tt['url'],
+                    'url': urljoin('https://vimeo.com', tt['url']),
                 }]
 
         thumbnails = []