script.
  document.addEventListener('WebComponentsReady', function(event) {
    document.addEventListener('HTMLImportsLoaded', function(event) {
      class HDAppAuthor extends SIBDisplayLookupList {
        get parentElement() {
          return 'div';
        }
        getTemplate(value, index) {
          var firstname, lastname;
          if (typeof value == 'object')
            if (Object.keys(value).length > 1) {
              firstname = value.user.first_name;
              lastname = value.user.last_name;
            } else {
              store.get(value).then(resource => {
                this.value.push(resource);
                this.render();
              });
              if (Array.isArray(this.value))
                this.value.splice(this.value.indexOf(value), 1);
              else this.value = [];
              return '';
            }
          return `${firstname} ${lastname}`;
        }
      }
      customElements.define('hdapp-author', HDAppAuthor);
    });
  });

div
  h1 Job offers
  sib-display#offers-list(
    data-src=`${sdn}/job-offers/`,
    data-fields='author, title, description, skills',
    set-searchset='title, description',
    widget-skills='sib-display-lookuplist',
    widget-author='hdapp-author',
    search-fields='searchset'
  )