Only scroll to iframes before switching to them if identifier is a string

Author: mdmintz

seleniumbase/fixtures/base_case.py

@@ -1687,7 +1687,7 @@ def switch_to_frame(self, frame, timeout=None):
             timeout = settings.SMALL_TIMEOUT
         if self.timeout_multiplier and timeout == settings.SMALL_TIMEOUT:
             timeout = self.__get_new_timeout(timeout)
-        if self.is_element_visible(frame):
+        if type(frame) is str and self.is_element_visible(frame):
             try:
                 self.scroll_to(frame, timeout=1)
             except Exception: