Make path optional in URL patterns

See #3622

qutebrowser/utils/urlmatch.py

@@ -144,8 +144,9 @@ class UrlPattern:
         if parsed.path == '/*':
             self._path = None
         elif parsed.path == '':
-            # We want to make it possible to leave off a trailing slash.
-            self._path = '/'
+            # When the user doesn't add a trailing slash, we assume the pattern
+            # matches any path.
+            self._path = None
         else:
             self._path = parsed.path
 

tests/unit/utils/test_urlmatch.py

@@ -112,6 +112,16 @@ def test_port(pattern, port):
     assert up._port == port
 
 
+@pytest.mark.parametrize('pattern, path', [
+    ("http://foo/", '/'),
+    ("http://foo", None),
+    ("http://foo/*", None),
+])
+def test_parse_path(pattern, path):
+    up = urlmatch.UrlPattern(pattern)
+    assert up._path == path
+
+
 class TestMatchAllPagesForGivenScheme:
 
     @pytest.fixture