HttpOnly policy causes correlation error

Questions
1

I’m creating an ASP.Net Core 2.2 application. Our security team wants us to use the httpOnly flag. So I did it like this:

app.UseCookiePolicy(new CookiePolicyOptions
{
    HttpOnly = AspNetCore.CookiePolicy.HttpOnlyPolicy.None,
});

But now I receive an error message when I am forwarded back to my app from OKTA:

Exception: Correlation failed.
Unknown location
Exception: An error was encountered while handling the remote login.
Microsoft.AspNetCore.Authentication.RemoteAuthenticationHandler.HandleRequestAsync()

But when I remove the httpOnly policy, authentication works great! I don’t really know how httpOnly works.