Fix login_required_middleware to check for non-empty URL names before redirecting

BridgeMentor/middleware/login_required_middleware.py

@@ -18,7 +18,7 @@ class LoginRequiredMiddleware:
             try:
                 url_name = resolve(request.path_info).url_name
                 print(f"Unautenticated URL name: {url_name}")
-                if url_name not in EXEMPT_URLS:
+                if (url_name not in EXEMPT_URLS) and url_name:
                     return redirect('/')
             except Exception as e:
                 return redirect('/')