Fix jconfirm dialog boxes in MasterQA Mode

Author: mdmintz

seleniumbase/masterqa/master_qa.py

@@ -191,7 +191,8 @@ def __manual_page_check(self, *args):
             get_jqc = None
             try:
                 get_jqc = self.execute_script("return jconfirm")
-                get_jqc = get_jqc["instances"]
+                if get_jqc is None:
+                    raise Exception("jconfirm did not load")
                 use_jqc = True
             except Exception:
                 use_jqc = False