fix: 微信登录补充保存username和role

node_modules/licia/download.js

@@ -0,0 +1,20 @@
+var createUrl = require('./createUrl');
+exports = function(data, name, type) {
+    type = type || 'text/plain';
+    var el = document.createElement('a');
+    el.setAttribute(
+        'href',
+        createUrl(data, {
+            type: type
+        })
+    );
+    el.setAttribute('download', name);
+    el.addEventListener('click', function(e) {
+        e.stopImmediatePropagation();
+    });
+    document.body.appendChild(el);
+    el.click();
+    document.body.removeChild(el);
+};
+
+module.exports = exports;