+        data = self._parse_json(
+            self._search_regex(
+                r'(?s)window\.App\s*=\s*({.+?})\s*;\s*</script',
+                webpage, 'data', default='{}'),
+            video_id, transform_source=lambda x: re.sub(
+                r'(?s)function\s+[a-zA-Z_][\da-zA-Z_]*\s*\([^)]*\)\s*{[^}]*}\s*',
+                'null', x), fatal=False)
+
+        video_id = None
+
+        if data:
+            video_id = try_get(
+                data, lambda x: x['context']['dispatcher']['stores'][
+                    'ContentPageProgramStore']['currentVideo']['id'],
+                compat_str)
+
+        # Fallback #1 (extract from og:image URL schema)
+        if not video_id:
+            thumbnail = self._og_search_thumbnail(webpage, default=None)
+            if thumbnail:
+                video_id = self._search_regex(
+                    # Patterns seen:
+                    #  http://cdn.playapi.mtgx.tv/imagecache/600x315/cloud/content-images/inbox/765166/a2e95e5f1d735bab9f309fa345cc3f25.jpg
+                    #  http://cdn.playapi.mtgx.tv/imagecache/600x315/cloud/content-images/seasons/15204/758770/4a5ba509ca8bc043e1ebd1a76131cdf2.jpg
+                    r'https?://[^/]+/imagecache/(?:[^/]+/)+(\d{6,})/',
+                    thumbnail, 'video id', default=None)
+
+        # Fallback #2. Extract from raw JSON string.
+        # May extract wrong video id if relatedClips is present.
+        if not video_id:
+            video_id = self._search_regex(
+                r'currentVideo["\']\s*:\s*.+?["\']id["\']\s*:\s*["\'](\d{6,})',
+                webpage, 'video id')