message: added test for bad regex
diff: @@ -783,4 +783,13 @@ mod tests {
  let result = reached_max_depth(&url, 0, 2);
  assert!(result);
  }
  +
  + #[test]
  + #[should_panic]
  + /// call initialize with a bad regex, triggering a panic
  + fn initialize_panics_on_bad_regex() {
  + let mut config = Configuration::default();
  + config.filter_regex = vec![r"(".to_string()];
  + initialize(1, &config);
  + }
  }
  