resolves #7 added token expired message if the jwt is expired

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017-present, Mafe, Inc.
+Copyright (c) 2017-present, WeWill3C, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

README.md

@@ -162,4 +162,8 @@ async function start() {
 // Don't worry be hapi
 start();
 ```
-License MIT 2017
+
+## Acknowledgement
+This project is kindly sponsored by [Now IMS](https://nowims.com)
+
+Licensed under [MIT](./LICENSE)

lib/index.js

@@ -126,6 +126,9 @@ internals.implementation = (server, options) => {
                         return true;
                     }
                     catch (error) {
+                        if (error.name === 'TokenExpiredError') {
+                            throw settings.unauthorized(`Invalid JWT: ${error.message} expiredAt: ${error.expiredAt}`);
+                        }
                         if (keysTried >= settings.keychain.length) {
                             throw settings.unauthorized(`Invalid JWT: key or signature is invalid`, settings.tokenType);
                         }