outside agent

I was recently watching a video where a strike that was going in hit a water bottle and bobbled wide. I believe this counts as outside interference and should be a dropped ball but as its in the area does this go back to the keeper? That seems unfair. But you also can’t really give a freekick...

What if a ball that would have gone in anyway touches a water bottle right before the goal-line. Would you allow the goal? http://www.dutchreferee.com/water-bottle-goal-correct-not/