failed to delete client token

[andypeng2015]

in v0.3.1 I am able to remove token in cookie, but in v0.4.2 it fails and user still see the token in browser even after it's deleted, see the code diff below, pls advise how to achieve the same in v0.4.2 @crewjam thanks

samlSP := samlsp.New(samlsp.Options{
		Logger:            logger.Logger,
		AllowIDPInitiated: true,
		IDPMetadataURL:    cfg.SAMLIDPMetadataURL,
		URL:               cfg.SAMLSPURL,
		Key:               cfg.SAMLCert.PrivateKey.(*rsa.PrivateKey),
		Certificate:       cfg.SAMLCert.Leaf,
		CookieMaxAge:      cfg.SAMLCookieAge,
		CookieName:        cookieName,
		CookieSecure:      true,
	})

// v0.3.1 works fine
samlSP.ClientToken.SetToken(ctx.Response().Writer, ctx.Request(), "", 0*time.Second)

// v0.4.2 failed to remove token in cookie
samlSP.Session.DeleteSession(ctx.Response(), ctx.Request())

[crewjam]

Hi @andypeng2015 I believe this was resolved by #321. Please reopen if not.

[sausax]

The token cookie still not getting deleted with DeleteSession() call.