js 设置标题 空白

    <script>document.title = 'u200E';</script>

 --返回上一页

    <div class="header"><a onclick="window.history.back(-1); return false;" class="back mui-icon mui-icon-back"></a><h1>xxx</h1></div>
    <div class="head"></div>

 --返回上一页

<a href="index.html"  class="back mui-icon mui-icon-back"></a>