webkit2gtk: TLS/SSL support not available

[danwdart]

I get this when requesting secure content on the embedded WebKit console in a web app developed using useWarp = false:

Failed to load resource: TLS/SSL support not available; install glib-networking

I have tried to add this package to overrides in default.nix, but it doesn't help, I think an upstream package might need overriding in reflex-platform.

What can I do?

Thanks

[danwdart]

Oops, dupe of #705.