From: Sergey M․ <dstftw@gmail.com>
Date: Tue, 7 Apr 2020 15:54:34 +0000 (+0700)
Subject: [extractor/common] Skip malformed ISM manifest XMLs while extracting ISM formats... 
X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=youtube-dl;a=commitdiff_plain;h=13b08034b53efdcf7055df92199a0f35cf1e172e

[extractor/common] Skip malformed ISM manifest XMLs while extracting ISM formats (#24667)
---

diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index eaae5e484..c51a3a07d 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -2340,6 +2340,8 @@ class InfoExtractor(object):
         if res is False:
             return []
         ism_doc, urlh = res
+        if ism_doc is None:
+            return []
 
         return self._parse_ism_formats(ism_doc, urlh.geturl(), ism_id)