Issues installing LibreWolf in fedora-42

Has anyone tried adding LibreWolf repo to the standard fedora-42 template?

I get 500 errors when I try to install the repo file via curl

$ curl -x 127.0.0.1:8082 -fsSL https://repo.librewolf.net/librewolf.repo | pkexec tee /etc/yum.repos.d/librewolf.repo
curl: (22) The requested URL returned error: 500

Similarly if I manually create the librewolf.repo and running an update gives

$ sudo dnf update
 LibreWolf Software Repository                                                                                                                                           ???% |   0.0   B/s |   0.0   B |  00m02s
>>> Curl error (56): Failure when receiving data from the peer for https://repo.librewolf.net/repodata/repomd.xml [CONNECT tunnel failed, response 500] - https://repo.librewolf.net/repodata/repomd.xml - repomd
>>> Curl error (56): Failure when receiving data from the peer for https://repo.librewolf.net/repodata/repomd.xml [CONNECT tunnel failed, response 500] - https://repo.librewolf.net/repodata/repomd.xml - repomd
>>> Curl error (56): Failure when receiving data from the peer for https://repo.librewolf.net/repodata/repomd.xml [CONNECT tunnel failed, response 500] - https://repo.librewolf.net/repodata/repomd.xml - repomd
>>> Curl error (56): Failure when receiving data from the peer for https://repo.librewolf.net/repodata/repomd.xml [CONNECT tunnel failed, response 500] - https://repo.librewolf.net/repodata/repomd.xml - repomd
>>> Librepo error: Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

I had been using the curl method for 40 and 41 without issue, and can connect to https://repo.librewolf.net with a browser and manually download librewolf.repo in appVM

and

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