diff --git a/src/models/api/requestModels.js b/src/models/api/requestModels.js
index e98cd93f..ac9f8369 100644
--- a/src/models/api/requestModels.js
+++ b/src/models/api/requestModels.js
@@ -24,31 +24,31 @@ var TokenRequest = function (email, masterPasswordHash, provider, token, remembe
     if (device) {
         this.device = device;
     }
+};
 
-    this.toIdentityToken = function () {
-        var obj = {
-            grant_type: 'password',
-            username: this.email,
-            password: this.masterPasswordHash,
-            scope: 'api offline_access',
-            client_id: 'browser'
-        };
-
-        if (this.device) {
-            obj.deviceType = this.device.type;
-            obj.deviceIdentifier = this.device.identifier;
-            obj.deviceName = this.device.name;
-            obj.devicePushToken = this.device.pushToken;
-        }
-
-        if (this.token && this.provider !== null && (typeof this.provider !== 'undefined')) {
-            obj.twoFactorToken = this.token;
-            obj.twoFactorProvider = this.provider;
-            obj.twoFactorRemember = this.remember ? '1' : '0';
-        }
-
-        return obj;
+TokenRequest.prototype.toIdentityToken = function () {
+    var obj = {
+        grant_type: 'password',
+        username: this.email,
+        password: this.masterPasswordHash,
+        scope: 'api offline_access',
+        client_id: 'browser'
     };
+
+    if (this.device) {
+        obj.deviceType = this.device.type;
+        obj.deviceIdentifier = this.device.identifier;
+        obj.deviceName = this.device.name;
+        obj.devicePushToken = this.device.pushToken;
+    }
+
+    if (this.token && this.provider !== null && (typeof this.provider !== 'undefined')) {
+        obj.twoFactorToken = this.token;
+        obj.twoFactorProvider = this.provider;
+        obj.twoFactorRemember = this.remember ? '1' : '0';
+    }
+
+    return obj;
 };
 
 var RegisterRequest = function (email, masterPasswordHash, masterPasswordHint, key) {
diff --git a/src/services/apiService.js b/src/services/apiService.js
index cfc43b1e..b111d70e 100644
--- a/src/services/apiService.js
+++ b/src/services/apiService.js
@@ -55,6 +55,10 @@ function initApiService() {
     ApiService.prototype.postIdentityToken = function (tokenRequest, success, successWithTwoFactor, error) {
         var self = this;
 
+        // Hack for Edge. For some reason tokenRequest loses proto. Rebuild it here.
+        tokenRequest = new TokenRequest(tokenRequest.email, tokenRequest.masterPasswordHash, tokenRequest.provider,
+            tokenRequest.token, tokenRequest.remeber, tokenRequest.device);
+
         $.ajax({
             type: 'POST',
             url: self.identityBaseUrl + '/connect/token',