message: Clean up normalizeURL. Don't default, just throw if url is undefined.
diff: @@ -4,7 +4,7 @@ import { FLAGS, connectToFlags } from '../features';
  import { Firehose, Dropdown } from './utils';
  // Trim trailing slash from URLs to make matching more likely
  -const normalizeURL = (url='') => url.replace(/\/$/g, '');
  +const normalizeURL = url => url.replace(/\/$/g, '');
  const FirehoseToDropdown = ({clusters, loaded}) => {
  if (!loaded) {
  @@ -13,7 +13,7 @@ const FirehoseToDropdown = ({clusters, loaded}) => {
  let selected;
  const ourURL = normalizeURL(window.location.origin + window.SERVER_FLAGS.basePath);
  const items = _.reduce(clusters.data, (obj, cluster) => {
  - const consoleURL = normalizeURL(_.get(cluster, ['metadata', 'annotations', 'multicluster.coreos.com/console-url']));
  + const consoleURL = normalizeURL(_.get(cluster, ['metadata', 'annotations', 'multicluster.coreos.com/console-url'], ''));
  if (!consoleURL) {
  return obj;
  }
  