X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=youtube_dl%2Fextractor%2Fcommon.py;h=fb2d50a098992f8088c41259b73d653c6f6f173d;hb=801dbbdffd9df57e4051e8fd01efbb6104f99c26;hp=cef4dce856fe9cc7339d28c18a9b23cc87dbfc8d;hpb=b5d0d817bc8a23ef6dc2a00d1af6fad893143206;p=youtube-dl.git

diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index cef4dce85..fb2d50a09 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -71,6 +71,9 @@ class InfoExtractor(object):
                                 ("3D" or "DASH video")
                     * width     Width of the video, if known
                     * height    Height of the video, if known
+    webpage_url:    The url to the video webpage, if given to youtube-dl it
+                    should allow to get the same result again. (It will be set
+                    by YoutubeDL if it's missing)
 
     Unless mentioned otherwise, the fields should be Unicode strings.
 
@@ -319,7 +322,9 @@ class InfoExtractor(object):
         if name is None:
             name = 'OpenGraph %s' % prop
         escaped = self._search_regex(self._og_regex(prop), html, name, flags=re.DOTALL, **kargs)
-        return unescapeHTML(escaped)
+        if not escaped is None:
+            return unescapeHTML(escaped)
+        return None
 
     def _og_search_thumbnail(self, html, **kargs):
         return self._og_search_property('image', html, u'thumbnail url', fatal=False, **kargs)