Promise problem rendering page

Hello.

I am using PDF.js in an angular service to make a custom viewer, the problem is the render page promise, the render task is working and rendering the PDF page in the canvas but i need a callback and for some reasons the promise is not working.

PDF version: 1.0.68

var renderContext = {
    canvasContext: context,
    viewport: viewport,
};

var renderTask = page.render(renderContext);

renderTask.then(function(){
    console.log("SUCCESS");
}, function(error){
    console.error("ERROR");
});

I also have tried:

renderTask.promise.then(function(){
    console.log("SUCCESS");
}, function(error){
    console.error("ERROR");
});

And

var renderTask = page.render(renderContext).then(function(){
    alert("PROMISE");
});

The page renders well but the problem is the promise, debugging in the chrome console i found that renderTask.promise:

Promise {resolve: function, reject: function, then: function, catch: function}

I just do not understand, how is supposed to be used the promise in page.render().

[yurydelendik]

i have downgrade to v1.0.233 and the promise are working again

1.0.68 is older than 1.0.233, sounds like you upgraded

PDF.js needs an official bower package

We are not experts in bower. There were few bower users who are interested in helping, but no actions were taken so far – just talking.

[Kesymaru]

Well i have downgrade to v1.0.233 and the promise are working again, i do not know if bower cause the problem updating the source, but i think that PDF.js needs an official bower package including a build and the source code.

Thanks for your time, problem solved!