Type your comment> @Kinjo said:
Due to the fact that I’ve read in previous posts that playing with https is not required, I avoided to transit that path. After some time walking arround, I’m beginning to wonder if it could be a good idea to return to https
As @skordokailas pointed out, it is true that there are two routes to root 
I personally went the way of https initially, but had the chance to go the other way. The alternative is only good if you are really familiar with the environment and potential exploit.