this.googleLogin = function() {
            var frontendLocation  = $location.host() + ':' + $location.port() + '/',
                frontendLocationRegExp = new RegExp(frontendLocation),
                deferred = $q.defer(),
                win = window.open(BackendAPI.createUrl("login/google-oauth2"), "", "width=800, height=800"),
                interval = window.setInterval(function() {
                    try {
                        if(frontendLocationRegExp.test(win.document.URL)) { //if in popup we have url from frontend host and port code below is executed
                            win.close();
                            var res = win.document.URL.split(frontendLocation),
                                userData = JSON.parse(decodeURIComponent(res[1]).replace('#', '')); // after decodeURI we delete from string '#' chars
                            deferred.resolve({
                                name: userData.first_name,
                                surname: userData.last_name,
                                email: userData.email
                            });
                        clearInterval(interval);
                        }
                    } catch(e) {
                        console.log(e);
                        clearInterval(interval);
                        deferred.reject();
                    }
                }, 300);
            return deferred.promise;
        }