addons\fecmall\fecyo\app\apphtml5\theme\fecyo\widgets\weixin.php
Line 1: <script src="http://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
把 http 改为 https
嗯,这个没注意
通用方案
<script src="//res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>