Brave snap crashes when handling web links as default web browser

[bengotow]

Hey folks! I tried out the Brave snap this afternoon because I wanted to see if this bug would be present—I've been having the same issue packaging Mailspring as a snap.

If you install the Brave snap and then make it the default web browser through Settings > Details > Default Applications (on Ubuntu 16), when you click a link to a web page in an application, the running copy of Brave is killed and a new copy of Brave launches to handle the link. I believe this is caused by a snapd issue with Electron's app.makeSingleInstance API, but I haven't gotten to the bottom of it yet: https://forum.snapcraft.io/t/electron-snap-killed-when-using-app-makesingleinstance-api/2667/17. Just wanted to let you know!

[rafifos]

It also breaks the session (resets history, bookmarks and settings)
EDIT: It doesn't, the window was invisible for some reason.