If you stick: <video controls> <source src="/video/sample.mp4" type="video/mp4"> Your browser does not support the video tag. </video> into a html

If you stick: <video controls> <source src="/video/sample.mp4" type="video/mp4"> Your browser does not support the video tag. </video> into a html file, and run it against this pastebin [0], you'll see that chrome (and safari) both do range requests out of the box if the fileis big enough. [0] https://pastebin.com/MyUfiwYE https://pastebin.com/MyUfiwYE