Improve web-platform-tests harness
Improve web-platform-tests harness

- Send virtual console output to the console
- Include the stack in failures
- Set the test URL to the internet URL, not a local file URL

fiftin/jsdom,evanlucas/jsdom,evdevgit/jsdom,darobin/jsdom,jeffcarp/jsdom,snuggs/jsdom,darobin/jsdom,zaucy/jsdom,fiftin/jsdom,sirbrillig/jsdom,nicolashenry/jsdom,Zirro/jsdom,tmpvar/jsdom,mbostock/jsdom,snuggs/jsdom,evanlucas/jsdom,zaucy/jsdom,kesla/jsdom,robertknight/jsdom,jeffcarp/jsdom,janusnic/jsdom,jeffcarp/jsdom,robertknight/jsdom,vestineo/jsdom,mzgol/jsdom,kesla/jsdom,evanlucas/jsdom,darobin/jsdom,Sebmaster/jsdom,susaing/jsdom,fiftin/jsdom,Ye-Yong-Chi/jsdom,Joris-van-der-Wel/jsdom,janusnic/jsdom,Ye-Yong-Chi/jsdom,vestineo/jsdom,evdevgit/jsdom,janusnic/jsdom,Ye-Yong-Chi/jsdom,mbostock/jsdom,kesla/jsdom,lcstore/jsdom,Sebmaster/jsdom,beni55/jsdom,tmpvar/jsdom,mbostock/jsdom,lcstore/jsdom,nicolashenry/jsdom,sirbrillig/jsdom,robertknight/jsdom,Zirro/jsdom,lcstore/jsdom,nicolashenry/jsdom,sirbrillig/jsdom,Sebmaster/jsdom,Joris-van-der-Wel/jsdom,beni55/jsdom,beni55/jsdom,evdevgit/jsdom,Joris-van-der-Wel/jsdom,mzgol/jsdom,susaing/jsdom,vestineo/jsdom,susaing/jsdom,zaucy/jsdom,mzgol/jsdom