diff --git a/test/test_youtube_signature.py b/test/test_youtube_signature.py
index 01f09de88..6759d2c46 100644
--- a/test/test_youtube_signature.py
+++ b/test/test_youtube_signature.py
@@ -62,6 +62,11 @@
         'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflKjOTVq/html5player.js',
         '312AA52209E3623129A412D56A40F11CB0AF14AE.3EE09501CB14E3BCDC3B2AE808BF3F1D14E7FBF12',
         '112AA5220913623229A412D56A40F11CB0AF14AE.3EE0950FCB14EEBCDC3B2AE808BF331D14E7FBF3',
+    ),
+    (
+        'https://www.youtube.com/s/player/6ed0d907/player_ias.vflset/en_US/base.js',
+        '2aq0aqSyOoJXtK73m-uME_jv7-pT15gOFC02RFkGMqWpzEICs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA',
+        'AOq0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xx8j7v1pDL2QwbdV96sCIEzpWqMGkFR20CFOg51Tp-7vj_EMu-m37KtXJoOySqa0',
     )
 ]
 
@@ -230,7 +235,7 @@ def n_sig(jscode, sig_input):
 
 
 make_sig_test = t_factory(
-    'signature', signature, re.compile(r'.*-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player)?\.[a-z]+$'))
+    'signature', signature, re.compile(r'.*(?:-|/player/)(?P<id>[a-zA-Z0-9_-]+)(?:/.+\.js|(?:/watch_as3|/html5player)?\.[a-z]+)$'))
 for test_spec in _SIG_TESTS:
     make_sig_test(*test_spec)
 
diff --git a/yt_dlp/jsinterp.py b/yt_dlp/jsinterp.py
index d6d555733..9c280fb86 100644
--- a/yt_dlp/jsinterp.py
+++ b/yt_dlp/jsinterp.py
@@ -779,7 +779,7 @@ def extract_object(self, objname):
         obj = {}
         obj_m = re.search(
             r'''(?x)
-                (?<!this\.)%s\s*=\s*{\s*
+                (?<!\.)%s\s*=\s*{\s*
                     (?P<fields>(%s\s*:\s*function\s*\(.*?\)\s*{.*?}(?:,\s*)?)*)
                 }\s*;
             ''' % (re.escape(objname), _FUNC_NAME_RE),