diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index ae8af61de..6b46db357 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -665,11 +665,11 @@ class InfoExtractor(object):
         return self._parse_json(
             json_string, video_id, transform_source=transform_source, fatal=fatal)
 
-    def _parse_json(self, json_string, video_id, transform_source=None, fatal=True):
+    def _parse_json(self, json_string, video_id, transform_source=None, fatal=True, strict=True):
         if transform_source:
             json_string = transform_source(json_string)
         try:
-            return json.loads(json_string)
+            return json.loads(json_string, strict=strict)
         except ValueError as ve:
             errmsg = '%s: Failed to parse JSON ' % video_id
             if fatal:
diff --git a/youtube_dl/extractor/gamestar.py b/youtube_dl/extractor/gamestar.py
index e607d6ab8..f9da04342 100644
--- a/youtube_dl/extractor/gamestar.py
+++ b/youtube_dl/extractor/gamestar.py
@@ -35,7 +35,7 @@ class GameStarIE(InfoExtractor):
         # while _search_json_ld finds only the first one
         json_ld = self._parse_json(self._search_regex(
             r'(?s)<script[^>]+type=(["\'])application/ld\+json\1[^>]*>(?P<json_ld>[^<]+VideoObject[^<]+)</script>',
-            webpage, 'JSON-LD', group='json_ld'), video_id)
+            webpage, 'JSON-LD', group='json_ld'), video_id, strict=False)
         info_dict = self._json_ld(json_ld, video_id)
         info_dict['title'] = remove_end(info_dict['title'], ' - GameStar')