fix integration

lib/OktaAuth.ts

@@ -47,6 +47,7 @@ import {
   FlowIdentifier,
   GetWithRedirectAPI,
   ParseFromUrlInterface,
+  GetWithRedirectFunction,
 } from './types';
 import {
   transactionStatus,
@@ -217,13 +218,21 @@ class OktaAuth implements SDKInterface, SigninAPI, SignoutAPI {
     };
 
     this._tokenQueue = new PromiseQueue();
-    const getWithRedirectApi: GetWithRedirectAPI = Object.assign(getWithRedirect.bind(null, this), {
+    const useQueue = (method) => {
+      return PromiseQueue.prototype.push.bind(this._tokenQueue, method, null);
+    };
+
+    // eslint-disable-next-line max-len
+    const getWithRedirectFn = useQueue(getWithRedirect.bind(null, this)) as GetWithRedirectFunction;
+    const getWithRedirectApi: GetWithRedirectAPI = Object.assign(getWithRedirectFn, {
       // This is exposed so we can set window.location in our tests
       _setLocation: function(url) {
         window.location = url;
       }
     });
-    const parseFromUrlApi: ParseFromUrlInterface = Object.assign(parseFromUrl.bind(null, this), {
+    // eslint-disable-next-line max-len
+    const parseFromUrlFn = useQueue(parseFromUrl.bind(null, this)) as ParseFromUrlInterface;
+    const parseFromUrlApi: ParseFromUrlInterface = Object.assign(parseFromUrlFn, {
       // This is exposed so we can mock getting window.history in our tests
       _getHistory: function() {
         return window.history;
@@ -256,7 +265,14 @@ class OktaAuth implements SDKInterface, SigninAPI, SignoutAPI {
       isLoginRedirect: isLoginRedirect.bind(null, this)
     };
     // Wrap all async token API methods using MethodQueue to avoid issues with concurrency
-    const syncMethods = ['decode', 'isLoginRedirect'];
+    const syncMethods = [
+      // sync methods
+      'decode',
+      'isLoginRedirect',
+      // already bound
+      'getWithRedirect',
+      'parseFromUrl'
+    ];
     Object.keys(this.token).forEach(key => {
       if (syncMethods.indexOf(key) >= 0) { // sync methods should not be wrapped
         return;