Access partial content downloaded by cancelled request

[andrisi]

What problem are you trying to solve?

Sometimes I need to cancel a request, but also access partial content downloaded by it. I cancel it from the progress event.

Describe the feature

I see request.isCanceled is useful, but is a rejected promise and properties don't seem to be accessible. Thanks.

Checklist

• I have read the documentation and made sure this feature doesn't already exist.

[szmarczak]

Use Stream API.

[andrisi]

Thanks @szmarczak will do so.