vinsol/spree_favorite_products

var getQueryParams = function(queryString) {
  queryString = queryString.split('+').join(' ');

  var params = {},
    tokens,
    re = /[?&]?([^=]+)=([^&]*)/g;

  while (tokens = re.exec(queryString)) {
    params[decodeURIComponent(tokens[1])] = decodeURIComponent(tokens[2]);
  }

  return params;
}