WebTorrent: Video streaming is broken since upgrade to WebTorrent v0.105.0

Description

It appears that WebTorrent video playback is broken on Nightly, ever since the upgrade to WebTorrent v0.105.0.

The URL constructor is undefined on this line in webtorrent/lib/server.js:

https://github.com/webtorrent/webtorrent/blob/78d98d9fa45598b63fb0fec013036e35d167f6c3/lib/server.js#L80

The reason appears that webpack replaces this line:

https://github.com/webtorrent/webtorrent/blob/78d98d9fa45598b63fb0fec013036e35d167f6c3/lib/server.js#L6

with:

const URL = __webpack_require__(/*! url */ "./node_modules/url/url.js").URL

and the url package doesn’t export URL as url.URL even though it exists in the chrome extension environment. I can fix this on the webtorrent side and publish a new version.

cc @yrliou

Steps to Reproduce

1. Go to https://webtorrent.io/free-torrents
2. Click on Big Buck Bunny (torrent file)
3. Start download
4. Right click on “Big Buck Bunny.mp4” and “Open Link in New Tab” (to workaround #3966)
5. The video does not load.
6. Check the WebTorrent extension background process (via brave://inspect/#extensions) to see the exception.

Actual result:

Expected result:

Video plays

Reproduces how often:

Easily reproduced

Brave version (brave://version info)

Nightly. Version 0.69.77 Chromium: 76.0.3809.62 (Official Build) nightly (64-bit)

Version/Channel Information:

• Can you reproduce this issue with the current release? No
• Can you reproduce this issue with the beta channel? No
• Can you reproduce this issue with the dev channel? No
• Can you reproduce this issue with the nightly channel? Yes

[btlechowski]

Verification passed on

Brave	0.69.124 Chromium: 76.0.3809.132 (Official Build) (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Ubuntu 18.04 LTS

Verified test plan from the description.

Was able to stream the video No exception in the console(only warnings):

Verified passed with

Brave	0.69.124 Chromium: 76.0.3809.132 (Official Build) (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Mac OS X

• Verified test plan from the description

Verification passed on

Brave	0.69.124 Chromium: 76.0.3809.132 (Official Build) (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Windows 10 OS Version 1803 (Build 17134.523)

• Verified the STR from the description - there are no exceptions in the extension background page

[yrliou]

This is fixed in 0.69.x too now because we upgrade WebTorrent to 0.105.1 in 0.69.x.