 {
            const parser = new DOMParser();
            const htmlDoc = parser.parseFromString(html, "text/html");
            const note = htmlDoc.querySelector('main.content');
            if (note !== null) {
              // This should only happen for chapter cross references
              // (since there is no id in the URL)
              // remove the first header
              if (note.children.length > 0 && note.children[0].tagName === "HEADER") {
                note.children[0].remove();
     