Termination of dev task won't kill npm processes

[alansemenov]

gradle dev task executes npm run watch which, in turn, starts several child processes. If user terminates execution of the dev command, these child processes should be terminated as well but they don't. This results in a port used by Browsersync to remain in use indefinitely.

Apparently this is a known bug in Gradle which hasn't been fixed yet.

We should try to somehow implement termination of these child processes ourselves or try to migrate from Browsersync to something else that is not using ports.

browsersync.mov