const cookieElm = document.querySelector('.cookies_wrapper') ;
const gestCookiesBtn =  cookieElm.querySelector('.btn-manage-cookies');
const firsEncre  = document.querySelector('.encreStartNav');

gestCookiesBtn.addEventListener('blur', function () {
    if(firsEncre) {
      firsEncre.focus(); 
    }
});

I just want to move the focus to this element (firsEncre ) when the focus leaves the button (gestCookiesBtn). With the event click it works well but not with the blur or focusout event. If you have any possible solutions, thank you in advance.