Unable to store and retrieve correctly from window.localStorage

[BICH0]

Environment

• OS: Arch Linux
• nody-greeter version: 1.5.1

Bug description

Storing data in localStorage and login results in data lost (or rolled back to previous state)

Steps to reproduce

window.localStorage.getItem("test");//-> Returns value2
window.localStorage.setItem("test","value2");
//do some things
window.localStorage.setItem("test","value1");
lightdm.authenticate(user);
lightdm.respond(pwd);
lightdm.start_session();

Expected behavior

When storing an item into storage and later retrieve it get that value