fix bug which caused a error if the front controller response object didn't exists at the time of session write
fix bug which caused a error if the front controller response object didn't exists at the time of session write

Signed-off-by: Henrique Vicente <d390f26e2f50ad5716a9c69c58de1f5df9730e3b@gmail.com>

henvic/vehikel,henvic/vehikel,henvic/vehikel