X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=youtube-dl;a=blobdiff_plain;f=youtube_dl%2Fextractor%2Fcommon.py;h=c51a3a07db693f23f9b53620353c3b4bc59957f0;hp=eaae5e484f99311ccf018301f773c87f9c8cf544;hb=13b08034b53efdcf7055df92199a0f35cf1e172e;hpb=6a6e1a0cd8bacf5a23f731eedaa1783503470227

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)