web_src/js/markup/common.ts


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export function displayError(el: Element, err: Error): void {
  el.classList.remove('is-loading');
  const errorNode = document.createElement('pre');
  errorNode.setAttribute('class', 'ui message error markup-block-error');
  errorNode.textContent = err.message || String(err);
  el.before(errorNode);
  el.setAttribute('data-render-done', 'true');
}