Trello.authorize() has stopped working for me?

Question

When I use Trello.authorize() after enabling a custom Power-Up I first get a page where I have to login

After that an Allow page:

And after that only a blank page... Success or error is not returned.

window.Trello.authorize({
    type: "popup",
    name: "my app",
    interactive: true,
    expiration: "never",
success: function () {console.log("Success") },
error: function () { console.log("fail"); },
    scope: { write: true, read: true },
});

The problem has appeared now but it has worked before - Any Ideas?

unknown · Accepted Answer

Check out this topic — https://community.developer.atlassian.com/t/allowing-an-app-to-use-the-trello-api-stopped-working/42709/28