fix: the CSRF cookie needs to have a same site lax mode

1 files changed, 4 insertions, 1 deletions

diff --git a/app/controllers/sessions/controller.go b/app/controllers/sessions/controller.go
index 8d0e858..5babe7d 100644
--- a/app/controllers/sessions/controller.go
+++ b/app/controllers/sessions/controller.go
@@ -33,7 +33,10 @@ func (c *Controller) New(w http.ResponseWriter, r *http.Request) {
 	}
 
 	url, nonce := c.svc.GenerateRedirectURL()
-	http.SetCookie(w, cookie.New("oauth_state", nonce, time.Now().Add(10*time.Minute)))
+	cookie := cookie.New("oauth_state", nonce, time.Now().Add(10*time.Minute))
+	// This cookie must be sent as part of a redirect that originates from the OIDC Provider
+	cookie.SameSite = http.SameSiteLaxMode
+	http.SetCookie(w, cookie)
 	http.Redirect(w, r, url, http.StatusFound)
 }