Getting a 400 login_required after authenticating and pressing the back button

After successful login using the OKTA default login page I get a 400 login_required page when hitting the back button. The url for this page is a redirect to my OKTA org
https://dev-7XXXX.okta.com/oauth2/v1/authorize/redirect?okta_key=
How do I prevent this redirect from showing up in the browser history?

Thanks.