user name and password on touchkit

My web application doesn’t save the user name and password both on the touchkit app and on the desktop app.

on the desktop, on Chrome if the user click on the user name field , the user can see some options and when an option is selected the password is auto-filled. however on the mobile version its just doesn’t happen and the fields are blank eventhough Chrome asked to save the password and I hit the save button …

I am using FormLayout on both apps with simple TextField and PasswordField

I appreciate your help.