diff --git a/packages/okta-angular/src/okta/services/okta.service.ts b/packages/okta-angular/src/okta/services/okta.service.ts
index 903c6a5a1..858df856e 100644
--- a/packages/okta-angular/src/okta/services/okta.service.ts
+++ b/packages/okta-angular/src/okta/services/okta.service.ts
@@ -88,16 +88,30 @@ export class OktaAuthService {
      * Returns the current accessToken in the tokenManager.
      */
     async getAccessToken(): Promise<string | undefined>  {
-      const accessToken = await this.oktaAuth.tokenManager.get('accessToken');
-      return accessToken ? accessToken.accessToken : undefined;
+      try {
+        const accessToken = await this.oktaAuth.tokenManager.get('accessToken');
+        return accessToken.accessToken;
+      } catch (err) {
+        // The user no longer has an existing SSO session in the browser.
+        // (OIDC error `login_required`)
+        // Ask the user to authenticate again.
+        return undefined;
+      }
     }
 
     /**
      * Returns the current idToken in the tokenManager.
      */
     async getIdToken(): Promise<string | undefined> {
-      const idToken = await this.oktaAuth.tokenManager.get('idToken');
-      return idToken ? idToken.idToken : undefined;
+      try {
+        const idToken = await this.oktaAuth.tokenManager.get('idToken');
+        return idToken.idToken;
+      } catch (err) {
+        // The user no longer has an existing SSO session in the browser.
+        // (OIDC error `login_required`)
+        // Ask the user to authenticate again.
+        return undefined;
+      }
     }
 
     /**
diff --git a/packages/okta-angular/test/e2e/harness/src/app/app.component.spec.ts b/packages/okta-angular/test/e2e/harness/src/app/app.component.spec.ts
index c025bc4eb..530130011 100644
--- a/packages/okta-angular/test/e2e/harness/src/app/app.component.spec.ts
+++ b/packages/okta-angular/test/e2e/harness/src/app/app.component.spec.ts
@@ -10,6 +10,29 @@ import {
   OktaLoginRedirectComponent
 } from '@okta/okta-angular';
 
+const mockAccessToken = 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJ2ZXIiOj' +
+                            'EsImp0aSI6IkFULnJ2Ym5TNGlXdTJhRE5jYTNid1RmMEg5Z' +
+                            'VdjV2xsS1FlaU5ZX1ZlSW1NWkEiLCJpc3MiOiJodHRwczov' +
+                            'L2xib3lldHRlLnRyZXhjbG91ZC5jb20vYXMvb3JzMXJnM3p' +
+                            '5YzhtdlZUSk8wZzciLCJhdWQiOiJodHRwczovL2xib3lldH' +
+                            'RlLnRyZXhjbG91ZC5jb20vYXMvb3JzMXJnM3p5YzhtdlZUS' +
+                            'k8wZzciLCJzdWIiOiIwMHUxcGNsYTVxWUlSRURMV0NRViIs' +
+                            'ImlhdCI6MTQ2ODQ2NzY0NywiZXhwIjoxNDY4NDcxMjQ3LCJ' +
+                            'jaWQiOiJQZjBhaWZyaFladTF2MFAxYkZGeiIsInVpZCI6Ij' +
+                            'AwdTFwY2xhNXFZSVJFRExXQ1FWIiwic2NwIjpbIm9wZW5pZ' +
+                            'CIsImVtYWlsIl19.ziKfS8IjSdOdTHCZllTDnLFdE96U9bS' +
+                            'IsJzI0MQ0zlnM2QiiA7nvS54k6Xy78ebnkJvmeMCctjXVKk' +
+                            'JOEhR6vs11qVmIgbwZ4--MqUIRU3WoFEsr0muLl039QrUa1' +
+                            'EQ9-Ua9rPOMaO0pFC6h2lfB_HfzGifXATKsN-wLdxk6cgA';
+const standardAccessTokenParsed = {
+  accessToken: mockAccessToken,
+  expiresAt: new Date().getTime() + 100, // ensure token is active
+  scopes: ['openid', 'email'],
+  tokenType: 'Bearer',
+  authorizeUrl: environment.ISSUER + '/oauth2/v1/authorize',
+  userinfoUrl: environment.ISSUER + '/oauth2/v1/userinfo'
+};
+
 describe('Unit Tests', () => {
   let component: AppComponent;
   let fixture: ComponentFixture<AppComponent>;
@@ -55,28 +78,6 @@ describe('Unit Tests', () => {
   }));
 
   it('can retrieve an accessToken from the tokenManager', async (done) => {
-    const mockAccessToken = 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJ2ZXIiOj' +
-                            'EsImp0aSI6IkFULnJ2Ym5TNGlXdTJhRE5jYTNid1RmMEg5Z' +
-                            'VdjV2xsS1FlaU5ZX1ZlSW1NWkEiLCJpc3MiOiJodHRwczov' +
-                            'L2xib3lldHRlLnRyZXhjbG91ZC5jb20vYXMvb3JzMXJnM3p' +
-                            '5YzhtdlZUSk8wZzciLCJhdWQiOiJodHRwczovL2xib3lldH' +
-                            'RlLnRyZXhjbG91ZC5jb20vYXMvb3JzMXJnM3p5YzhtdlZUS' +
-                            'k8wZzciLCJzdWIiOiIwMHUxcGNsYTVxWUlSRURMV0NRViIs' +
-                            'ImlhdCI6MTQ2ODQ2NzY0NywiZXhwIjoxNDY4NDcxMjQ3LCJ' +
-                            'jaWQiOiJQZjBhaWZyaFladTF2MFAxYkZGeiIsInVpZCI6Ij' +
-                            'AwdTFwY2xhNXFZSVJFRExXQ1FWIiwic2NwIjpbIm9wZW5pZ' +
-                            'CIsImVtYWlsIl19.ziKfS8IjSdOdTHCZllTDnLFdE96U9bS' +
-                            'IsJzI0MQ0zlnM2QiiA7nvS54k6Xy78ebnkJvmeMCctjXVKk' +
-                            'JOEhR6vs11qVmIgbwZ4--MqUIRU3WoFEsr0muLl039QrUa1' +
-                            'EQ9-Ua9rPOMaO0pFC6h2lfB_HfzGifXATKsN-wLdxk6cgA';
-    const standardAccessTokenParsed = {
-      accessToken: mockAccessToken,
-      expiresAt: new Date().getTime() + 100, // ensure token is active
-      scopes: ['openid', 'email'],
-      tokenType: 'Bearer',
-      authorizeUrl: environment.ISSUER + '/oauth2/v1/authorize',
-      userinfoUrl: environment.ISSUER + '/oauth2/v1/userinfo'
-    };
     // Store the token
     localStorage.setItem(
       'okta-token-storage',
@@ -86,4 +87,22 @@ describe('Unit Tests', () => {
     expect(accessToken).toBe(mockAccessToken);
     done();
   });
+
+  it('isAuthenticated() returns true when the TokenManager returns an access token', async (done) => {
+    // Store the token
+    localStorage.setItem(
+      'okta-token-storage',
+      JSON.stringify({'accessToken': standardAccessTokenParsed}),
+    );
+    const authenticated = await component.oktaAuth.isAuthenticated();
+    expect(authenticated).toBeTruthy();
+    done();
+  });
+
+  it('isAuthenticated() returns false when the TokenManager does not return an access token', async (done) => {
+    // Don't store the token
+    const authenticated = await component.oktaAuth.isAuthenticated();
+    expect(authenticated).toBeFalsy();
+    done();
+  });
 });