xDai fork - Bootnode public access to call contract on the chain

In Stable chain network deployment part 7 I can not acces my bootnode instance via a browser so I can not make any transaction to the private blockchain.

Nevertheless, the port 80 is open on this instance (at least for UDP) but a service (Apache, nginx…) should catch the call, right?
Is this what the bootnodes.txt containing the enode(s) should do?

By the way nc -u -v -z 80 gives me Connection to 80 port [udp/] succeeded!. But nothing for TCP (using -t instead of -u).

Thanks in advance for your time

Weird that has been resolved by removing everything (VPC, subnets, instances) on AWS and start the whole process again :thinking:
Maybe I forgot tried http://… instead of https://