Browser VS Electron

[Ciao121]

What version of WebTorrent?
0.98.23
What operating system and Node.js version?
Windows 10 / Node 8.5.0 / electron 1.7.9
What browser and version? (if using WebTorrent in the browser)
Chrome / Firefox

Hi,
I'm developing an electron app and I have a problem with time needed to start a download.
I tried e.g. the infohash 6a9759bffd5c0af65319979fb7832189f4f3c35d (a sintel infohash).

On instant.io and using magnet player in the browser it starts in few seconds.
In the electron app it waits a lot (also minutes) before starting download.

Obviously I'm trying on the same PC, same connection etc.
Any idea?

Thank you!

[DiegoRBaquero]

Depending on which process (render or main) of Electron you run WebTorrent in you might be connecting to WebRTC clients or TCP/UDP clients.

I think this might be it.

[Ciao121]

I'm going to look into it. But it happens also with files I'm the only seeder (seeding using WebRTC).
Update: WebTorrent.WEBRTC_SUPPORT gives me true.

[feross]

https://instant.io automatically adds tracker servers (which helps with finding peers super quickly).

Without any trackers, the only way to find peers is the DHT, which can sometimes take a while.

If you're using client.add() with an info hash (which you said you're doing) then you need to pass the announce option to force add tracker servers.

Or, a better way to do this is:

global.WEBTORRENT_ANNOUNCE = createTorrent.announceList
  .map(function (arr) {
    return arr[0]
  })
  .filter(function (url) {
    return url.indexOf('wss://') === 0 || url.indexOf('ws://') === 0
  })

From instant.io source code: https://github.com/webtorrent/instant.io/blob/b898193ba36f6f1b748cf23c444d3491c2d3fa78/client/index.js#L15-L21

[Ciao121]

I was alread adding a tracker programmatically (did not specify this in my post) in this way:
client.add(dataFolder+parsed.infoHash+'.torrent',{ announce: ['wss://mytracker.com'], path: myFolder })

I made another test. I simply opened instant.io in electron and used the same hash.
It tooks 44 seconds to start downloading (while using chrome it only took 3 seconds).