I use this method return user.get('product') but getting blank value

I have updated my global mbox with profile.product parameter that values properly show in my server call.However i am not able to return that profile parameter values in profile script below is my codeif(mbox=='target-global-mbox'){return profile.get('product');}

I have set profile parameter on click of button.however in target profile script i am not able to fetch the profile parameter value using profile.get method.please guide me on same.