fix: no token exception when tokenRequired is set to false (#118)

Author: SkyLeite

lib/auth/auth.js

@@ -1,7 +1,7 @@
 import getProp from 'dotprop'
 
 import Storage from './storage'
-import { routeOption, isRelativeURL, isUnset, isSameURL } from './utilities'
+import { routeOption, isRelativeURL, isSet, isSameURL } from './utilities'
 
 export default class Auth {
   constructor (ctx, options) {
@@ -237,17 +237,13 @@ export default class Auth {
   requestWith (strategy, endpoint, defaults) {
     const token = this.getToken(strategy)
 
-    if (isUnset(token)) {
-      return Promise.reject(new Error('No Token'))
-    }
-
     const _endpoint = Object.assign({}, defaults, endpoint)
 
     if (!_endpoint.headers) {
       _endpoint.headers = {}
     }
 
-    if (!_endpoint.headers['Authorization']) {
+    if (!_endpoint.headers['Authorization'] && isSet(token)) {
       _endpoint.headers['Authorization'] = token
     }