evercookie return undefined when get() multi called at the same time

[Alvin]

var ec = new evercookie();
ec.set('testKey', 'testValue');

ec.get('testKey', res => {console.log(res)});
ec.get('testKey', res => {console.log(res)});

when get() multi called at the same time, the result may be undefined;

[Deleted user]

why you want to get multiple times? just call it once and store it in javascript variable.

[Vladimir Marchevsky]

@syamsoul because you want to store more than one cookie, for example. Using multiple get() with different keys breaks everything as well.