html.js

 (head, req) => {
  provides("html", () => {
    send(`<table border="2">`);
    var row;
    while (row = getRow()) {
      send(`<tr><td>${JSON.stringify(row.key)}</td><td><td>${JSON.stringify(row.value)}</td></tr>`);
    }
    send(`</table>`);
  });
}