[facebook] Fix extraction (closes #12323)

Almost all videos now use the pagelet type 'permalink_video_pagelet'

ChangeLog

@@ -1,3 +1,9 @@
+version <unreleased>
+
+Extractors
+* [facebook] Fix extraction (#12323)
+
+
 version 2017.02.28
 
 Core

youtube_dl/extractor/facebook.py

@@ -303,7 +303,7 @@ class FacebookIE(InfoExtractor):
         if not video_data:
             server_js_data = self._parse_json(
                 self._search_regex(
-                    r'bigPipe\.onPageletArrive\(({.+?})\)\s*;\s*}\s*\)\s*,\s*["\']onPageletArrive\s+(?:stream_pagelet|pagelet_group_mall)',
+                    r'bigPipe\.onPageletArrive\(({.+?})\)\s*;\s*}\s*\)\s*,\s*["\']onPageletArrive\s+(?:stream_pagelet|pagelet_group_mall|permalink_video_pagelet)',
                     webpage, 'js data', default='{}'),
                 video_id, transform_source=js_to_json, fatal=False)
             if server_js_data: