bug fixes

static/wx.js

@@ -27,7 +27,7 @@ function useWXShare(data) {
   fetch('https://node-server.ezijing.com/share/getsignature', {
     method: 'post',
     headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
-    body: JSON.stringify({ appId: 'wxfe67f37095e08d2f', url: location.href.split('#').pop() })
+    body: new URLSearchParams({ appId: 'wxfe67f37095e08d2f', url: location.href.split('#').pop() })
   })
     .then(response => {
       return response.json()