can you please add this to the documentation as well so the option is explained? and a note in the changelog would be nice

Will do that.

(also for the tweak with the ProxyClient alias :-) ) the version will be 3.2.0

Please note that this PR targets 2.x (because we're currently stuck with Symfony 5 😞 for the other PR I forgot to select 2.x as the target 🤦, but this one is more important for us).

and if you have time to add a test that ensures the factory is actually configured when specified in the config, that would be nice too.

I'll look into it.

oh, i did not realize this goes to 2.x

alright, i can do a new minor of 2.x for this to help you out. i will wait until you added the doc, changelog and if you manage to add a test.
for the proxyclient i added the changelog entry meanwhile.

there you go https://github.com/FriendsOfSymfony/FOSHttpCacheBundle/releases/tag/2.18.0

thanks for the contributions!

Wow, that was fast! Thank you very much 💚