diff --git a/oauth3.core.js b/oauth3.core.js
index d3d1dfe..0756e77 100644
--- a/oauth3.core.js
+++ b/oauth3.core.js
@@ -538,7 +538,7 @@
         }
       , _get: function (providerUri) {
           console.warn('[Warn] Please implement OAUTH3.hooks.session._get = function (providerUri) { return PromiseA<savedSession>; }');
-          return JSON.parse(window.localStorage.getItem('session-' + providerUri) || '{}');
+          return JSON.parse(window.localStorage.getItem('session-' + providerUri) || 'null');
         }
       , _set: function (providerUri, newSession) {
           console.warn('[Warn] Please implement OAUTH3.hooks.session._set = function (providerUri, newSession) { return PromiseA<newSession>; }');
@@ -1059,7 +1059,7 @@
         });
       }
     , session: function () {
-        return JSON.parse(JSON.stringify(OAUTH3.hooks.session._getCached(this._providerUri) || {}));
+        return JSON.parse(JSON.stringify(OAUTH3.hooks.session._getCached(this._providerUri) || null));
       }
     , request: function (preq, opts) {
         opts = opts || {};