UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36

Steps to reproduce the problem:
(This is done inside a service worker)

1. Intercept a link and respondWith() a custom response
2. The custom response should have a readable stream and a Content-Disposition header to trigger a download
3. Pause the download in the browsers UI
4. Enqueue some chunks to the readable stream after you have paused the download

This can also be tested here: https://jimmywarting.github.io/StreamSaver.js/example.html

1. Choose plain text
2. Write a couple aaa's to trigger the download dialog to appear and save it somewhere
3. Pause the download
4. Write a lot of Lorem ipsum (100 MiB or so)
5. Resume the download

What is the expected behavior?
The ReadableStream in the service worker would stop pulling for more data and that the desiredSize in the stream controller goes to 0

I expected it to stop pulling

What went wrong?
The ReadableStream keeps pulling for more data even doe client paused the download. (The desiredSize in the stream controller is always positive)

Did this work before? No 

Chrome version: 52.0.2743.82  Channel: stable
OS Version: OS X 10.11.5
Flash Version: