     'unit/legacy-data.html',
      'unit/legacy-undefined.html',
      'unit/legacy-noattributes.html',
      // 'unit/multi-style.html'
      'unit/class-properties.html',
      'unit/styling-scoped-nopatch.html'
    ];

    function combinations(suites, flags) {
      return flags.map((f) => {
        return f ? suites.map(s => `${s}${s.match(/\?/) ? '&' : '?'}${f}`) : suites;
      }).reduce((arr, s) => arr.concat(s), []);
    }

    function addUrlOption(previous = '', next = '') {
      return previou