VK Open API, wall.post error occurs, why?

Question

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Hello everyone, maybe someone faced the same problem as me. Created an application for a website using Open API. Authorization - successful, getting the server for the photo - successful, uploading the photo - successful, I do wall.post see this:
Uncaught TypeError: Cannot read property 'closed' of undefined (openapi.js:583)
What? How did I break their library? I would understand everything, but people write that everything works for them...
VK.Api.call('wall.post', {message: 'Post via VK Open API'}, function (r) {console.log(r) ;});

Answer 1

The browser is blocking the popup. After permission is granted, the error does not appear.