utils.javascript: Handle bools in _convert_js_arg

qutebrowser/utils/javascript.py

@@ -52,6 +52,8 @@ def _convert_js_arg(arg):
         return 'undefined'
     elif isinstance(arg, str):
         return '"{}"'.format(string_escape(arg))
+    elif isinstance(arg, bool):
+        return str(arg).lower()
     elif isinstance(arg, (int, float)):
         return str(arg)
     else:

tests/unit/utils/test_javascript.py

@@ -127,8 +127,10 @@ class TestStringEscape:
     ('foo\\bar', r'"foo\\bar"'),
     (42, '42'),
     (23.42, '23.42'),
+    (False, 'false'),
     (None, 'undefined'),
     (object(), TypeError),
+    (True, 'true'),
 ])
 def test_convert_js_arg(arg, expected):
     if expected is TypeError: