From c35e081e0d11ed4e6cc9ca3db43c9f0d5f3799f6 Mon Sep 17 00:00:00 2001
From: Roman Beranek <roman.beranek@prusa3d.com>
Date: Fri, 17 Jul 2020 18:58:13 +0200
Subject: [PATCH] [cspan] append 'Referer' header with the video URL

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

diff --git a/youtube_dl/extractor/cspan.py b/youtube_dl/extractor/cspan.py
index 67d6df4b0..3356cc280 100644
--- a/youtube_dl/extractor/cspan.py
+++ b/youtube_dl/extractor/cspan.py
@@ -165,6 +165,8 @@ class CSpanIE(InfoExtractor):
                 formats = self._extract_m3u8_formats(
                     path, video_id, 'mp4', entry_protocol='m3u8_native',
                     m3u8_id='hls') if determine_ext(path) == 'm3u8' else [{'url': path, }]
+            for f in formats:
+                f.setdefault('http_headers', {})['Referer'] = url
             self._sort_formats(formats)
             entries.append({
                 'id': '%s_%d' % (video_id, partnum + 1),