Triggered by #11900.
libwww-perl needs an upgrade anyway. At the moment, LWP::UserAgent does not support CONNECT method, which is required for HTTPS in most cases. It is interesting to see that this is not necessary, defining a HTTP proxy for HTTPS instead works, but the current Pakfire implementation seems to be faulty. :-/
See also: https://stackoverflow.com/questions/12116244/https-proxy-and-lwpuseragent/17787133#17787133
https://patchwork.ipfire.org/project/ipfire/list/?series=1179
libwww-perl update @ https://patchwork.ipfire.org/patch/2934/
https://git.ipfire.org/?p=ipfire-2.x.git;a=commit;h=d96d5db6e51999d1239639140ab715bf97cb2749 https://git.ipfire.org/?p=ipfire-2.x.git;a=commit;h=cf33650eb354795b7a5a19bf356f563908075cca
libwww-perl update @ https://git.ipfire.org/?p=ipfire-2.x.git;a=commit;h=3bcd393e18c76683f7649368bd30c5c57789f7e5
https://blog.ipfire.org/post/ipfire-2-25-core-update-145-is-available-for-testing
https://blog.ipfire.org/post/ipfire-2-25-core-update-145-released