Use ICP RTT with HTTPS request

[Théo BARRAGUE <Theo.BARRAGUE.ext@xxxxxxxxxxxxx>]

Hello,

I'm trying to setup ICP exchange with HTTPS request.
With my current setup (no ssl bumping) I can't use ICP for cache but it may be possible for RTT.

My goal is to use the closest parent to establish the connection.

My configuration look like :

cache_peer 127.0.0.1 parent 3129 3131 no-digest proxy-only name=same-server

cache_peer_access same-server allow all

cache_peer w.x.y.z parent 3129 3131 no-digest proxy-only name=pair-server

cache_peer_access pair-server allow all

query_icmp on

never_direct allow all

It works great for http, when I curl for the first time i got that :

same-server
Network                                        recv/sent     RTT  Hops Hostnames

142.251.40.0                                      1/   1   121.0  14.0 www.google.fr

pair-server

Network                                        recv/sent     RTT  Hops Hostnames

172.253.122.0                                     1/   1    94.0  23.0 www.google.fr

Next requests will go through pair-server, example :

same-server
Network                                        recv/sent     RTT  Hops Hostnames

142.251.40.0                                      1/   1   121.0  14.0 www.google.fr

pair-server

Network                                        recv/sent     RTT  Hops Hostnames

172.253.122.0                                    10/  10    93.1  23.0 www.google.fr

But for HTTPS, squid is able to determine hostname and network but doesn't care about RTT sharing :

same-server
Network                                        recv/sent     RTT  Hops Hostnames

149.202.190.0                                    10/   1     6.0  15.0 api.gouv.fr

pair-server
Network                                        recv/sent     RTT  Hops Hostnames

Even if I force a request though the pair-server to initiate NetDB, ICP not used.

How can I say "please, use ICP for RTT sharing like you did with HTTP" ?

Best regards

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