function check(protocol, domain, port, done) { var url = protocol + '://' + domain + ':' + port + '/echo'; var ws = new WebSocket(url); ws.addEventListener('error', function() { done(false); }); ws.addEventListener('open', function() { done(true); }); } async_test(function(t) { check('wss', '{{browser_host}}', {{ports[h2][0]}}, t.step_func(function(result) { assert_true(result); t.done(); })); }, 'WSS over h2');