A captcha is displayed, which the http client apparently cannot solve
About Cloudflare and TOR: https://blog.torproject.org/blog/trouble-cloudflare
It is possible to allow unhindered access via TOR network, described here: https://support.cloudflare.com/hc/en-us/articles/203306930-Does-Cloudflare-block-Tor-
Would be nice if you could make this possible.
PS: I know, there is a workaround, I can exclude skyhook.sonarr.tv from being accessed via the proxy, but I don’t want to do that.