message: Clear cookies before each cookie test
  This seems to fix flaky tests on SauceLabs.
  Ref
diff: @@ -4,7 +4,7 @@ var assert = require('proclaim');
  var cookie = require('../lib').constructor.cookie;
  describe('cookie', function() {
  - before(function() {
  + beforeEach(function() {
  // Just to make sure that
  // URIError is never thrown here.
  document.cookie = 'bad=%';
  