ay.title = 'Import error';
          overlay.visible = true;
          createViewFromTracesTimer.end();
        });
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  function onSelectionChange() {
    window.location.hash = '#' + selectEl.value;
  }

  function onHashChange() {
    const file = window.location.hash.substr(1);
    if (selectEl.children[selectEl.selectedIndex].value !== file) {
      for (let i = 0; i < selectEl.children.length; i++) {
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          selectEl.selectedIndex = i;
          b