Pause to download video via JS?

Is it possible to pause the download of a video file (I'm assuming a get http request) and resume later?

My ajax site is requesting all of its pages and I need to pause the download of the video if the user needs to download something else (to stop too much bandwidth).

Scenario: - User visits a web page - Video starts downloading - User interacts with another part of the web page - Video stops downloading - Another file starts downloading (user initiated) - After the download of the file is complete, the video download starts from where it was stopped ...

I no longer think that this is possible due to the small amount that I can find on this topic. My colleagues also think that this is impossible.