How to make a post on the wall in vk.com using wall.post from the site?

Question

JavaScript

All the time I stumble upon the error "open api access error", or the window appears and disappears.
Here is the code that I use using open api:

<button type="button" class="btn btn-primary" onclick="postWall('test message');"></button>

VK.init({
           apiId: ********
});

        function postWall(message) {

            VK.Auth.login(
                function(response) {
                    if (response.session) {
                        var userId = response.session.mid;
                        VK.Api.call('wall.post',
                                {owner_id: userId, message: message}, function (data) {
                                    if (data.response) {
                                        alert('Запись успешно добавлена!');
                                    }
                                });
                    }
                },
                8192
            );

Answer 1

vk.com/dev/wall.post
vk.com/dev/api_confirm
vk.com/dev/errors

Answer 2

but everything seems to be fine, I tested from the local machine, and if you work from the server, then the messages are fasting