Parse Github `Links` header in JavaScript

gistfile1.js

/*
 * parse_link_header()
 *
 * Parse the Github Link HTTP header used for pageination
 * http://developer.github.com/v3/#pagination
 */
function parse_link_header(header) {
  if (header.length == 0) {
    throw new Error("input must not be of zero length");
  }

  // Split parts by comma
  var parts = header.split(',');
  var links = {};
  // Parse each part into a named link
  _.each(parts, function(p) {
    var section = p.split(';');
    if (section.length != 2) {
      throw new Error("section could not be split on ';'");
    }
    var url = section[0].replace(/<(.*)>/, '$1').trim();
    var name = section[1].replace(/rel="(.*)"/, '$1').trim();
    links[name] = url;
  });

  return links;
}

Lodash:

const links = _.chain(link)
        .split(',')
        .map(link => {
          return {
            ref: link.split(';')[1].replace(/rel="(.*)"/, '$1').trim(),
            url: link.split(';')[0].replace(/<(.*)>/, '$1').trim(),
          }
        })
        .keyBy('ref')
        .mapValues('url')
        .value()