I think we are pretty close to be able to use both.
The xhr-polling seems to be pretty stable, but I'm having problems with multiple SSH tunnels (on BS), so let's try to switch back to SL.
I can't get it allocated on SauceLabs and so this is failing all the builds, making our Travis build useless.
I contacted folks from SL. Once we figure it out, I will revert this change.
Also instead of running everything in parallel, there are only two parallel tasks:
- e2e tests running in the background (only on Chrome)
- all the unit tests running sequentially