Return if access_token is nil

lib/omniauth-okta/version.rb

@@ -2,6 +2,6 @@
 
 module OmniAuth
   module Okta
-    VERSION = '1.0.0'.freeze
+    VERSION = '2.0.0'.freeze
   end
 end

lib/omniauth/strategies/okta.rb

@@ -64,6 +64,8 @@ def callback_url
       end
 
       def id_token
+        return if access_token.nil?
+
         access_token['id_token']
       end
 

spec/omniauth/strategies/okta_spec.rb

@@ -136,6 +136,14 @@
     end
 
     it { expect(subject.id_token).to eq(id_token_string) }
+
+    context 'when access token is nil' do
+      before do
+        allow(subject).to receive(:access_token).and_return(nil)
+      end
+
+      it { expect(subject.id_token).to be_nil }
+    end
   end
 
   describe 'raw_info' do