message: Calling $on for $eventHub conditional on its presence.
  This code on the mount event for this component when using the embedded viewer on a page is very noisy with respect to $eventHub seemingly being not present on the Vue instance, or at least not at the time of mounting.
diff: @@ -164,12 +164,14 @@ export default {
  if (this.props) {
  this.parseAndSetFilters()
  }
  + if (this.$eventHub) {
  this.$eventHub.$on('structure-filters', () => {
  this.activeFilter = null
  })
  this.$eventHub.$on('selection-filters', () => {
  this.activeFilter = null
  })
  + }
  },
  methods: {
  parseAndSetFilters() {
  