fix bug

 {{> layout/main_header}}
-{{#unless isWechat}}
-	{{> layout/page_header}}
-{{/unless}}
+{{> layout/page_header}}
\ No newline at end of file

@@ -61,5 +61,10 @@
     </ul>
 </div>
 {{/navBtn}}
-
+<script type="text/javascript">
+    var isWechat = /micromessenger/i.test(navigator.userAgent || '');
+    if (isWechat) {
+        document.getElementById('yoho-header').classList.add('hide');
+    }
+</script>
 {{/pageHeader}}