               td colSpan: '5',
                 span className: 'spinner'
         else
-          if clusters && clusters.length
+          if clusters? && clusters.length
             for cluster in clusters
               React.createElement ClusterItem, cluster: cluster, key: cluster.name, kubernikusBaseUrl: kubernikusBaseUrl
 

    {flashError, isFetching, clusters, handleNewCluster, error, kubernikusBaseUrl} = @props

    div null,
      if flashError or error
        div className: 'alert alert-error alert-dismissible',
          button className: 'close', type: 'button', 'data-dismiss': 'alert',
            span null,

            tbody null,
              tr null,
                td colSpan: '5',
                  if error?
                    'Could not retrieve clusters'
                  else
                    'No clusters found'
