t 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();
              }
              const html = processXRef(null, note);
              instance.setContent(html);
            } 
          }).fi