add redirect query param

example/pages/login.vue

@@ -4,7 +4,7 @@
   <hr>
   <b-alert v-model="hasError" dismissible variant="danger">Please check credentials.</b-alert>
   <b-alert show v-if="redirect">
-    You have to login before accessing to this page.
+    You have to login before accessing to <strong>{{ redirect }}</strong>
   </b-alert>
   <form @keydown.enter="login">
     <b-form-group label="Username">
@@ -34,7 +34,7 @@ export default {
   },
   computed: {
     redirect() {
-      return Boolean(this.$route.query.redirect)
+      return this.$route.query.redirect && decodeURIComponent(this.$route.query.redirect)
     }
   },
   mounted() {

lib/auth.js

@@ -291,14 +291,18 @@ export default class Auth {
       name = this.getState('loggedIn') ? 'home' : 'login'
     }
 
-    const to = this.options.redirect[name]
+    let to = this.options.redirect[name]
     const from = this.$route.path
 
     // Prevent infinity redirects
     if (to.split('?')[0] === from) {
       return
     }
 
+    if (name === 'login' && to.indexOf('?') === -1) {
+      to = to + '?redirect=' + from
+    }
+
     this.ctx.redirect(to)
   }
 }