saji / waffle.io -- open issues instead of cards

// ==UserScript==
// @name       waffle.io -- open issues instead of cards
// @namespace  https://twitter.com/saji_
// @version    1.0
// @description  as name promises
// @match      https://waffle.io/*
// @copyright  2015+, Marek ‘saji’ Augustynowicz
// ==/UserScript==
 
$(document).on('click', '.card-number', function (event) {
    window.open(
        $(event.target).closest('[data-waffle-url]').data('waffle-url').replace(/api\.|\/repos/g, ''),
        '_blank'
    );
    // Does not work ☹
    event.preventDefault();
    event.stopPropagation();
});