fix: 修复client为undefined

src/layouts/SecurityLayout.js

@@ -31,7 +31,7 @@ class SecurityLayout extends React.Component {
     if(_.isNull(global.token) || (global.hasGateWay && _.isNull(global.access_token))) {
       this.props.updateCurrentIndex && this.props.updateCurrentIndex(0);
       window.share && window.share.event && window.share.event.emit('initConfig');
-      const client = global.client ? global.client: 'city';
+      const client = _.isNull(global.client) || _.isUndefined(global.client) ? global.client: 'city';
       return (
         <Redirect to={`/user/login?client=${client}`} />
       );