$(function() {
    console.log('ok');
    if (window.location.href.includes('/teach/control/lesson/view?id')) {
        console.log('ok');
        if ($('.training_header .container .logo.gc-account-logo').length === 0) {
            console.log('ok');
            $('.training_header .container').prepend($('.standard-logo'));
            console.log('ok');
        }
        if ($('.self-answers .user-image').length === 0) {
            $('.self-answers').hide();
            console.log('ok');
        }
    }
});