I have been developing this site:

So it did:

let range = req.headers.range
if(!range) range = 'bytes=0-'

...

But there still was a problem I thought it was about the path, then i changed this:

const videoPath = 'public/assets/mirobod.webm'

to tis:

const videoName = 'mirobod.webm'
const videoPath = path.resolve('public/assets/', videoName)

And it succeeded!