Greasemonkey / Tampermonkey脚本跟随按钮

Question

我试图触发具有以下来源的动态生成页面上的按钮：

<button class="pt-button" type="button">Restart</button>

我尝试了以下操作，但不起作用。有指针吗？

(function() {
    'use strict';

    waitForKeyElements("#button.pt-button:contains('Restart')", clickButtonAfterDelay);

    function clickButtonAfterDelay (jNode) {
    if (document.readyState != "complete")  return true;
        setTimeout (triggerMouseEvent, 2222, jNode[0], "click");
    }

    function triggerMouseEvent (jNode) {
        var clickEvent = document.createEvent ('MouseEvents');
        clickEvent.initEvent ('click', true, true);
        jNode[0].dispatchEvent (clickEvent);
    }
})();