HTTPS Proxy can't start up

[besi]

I have a proxy configuration like so:

# ~/.pow/somehost
https://localhost:8333

Now when I access https://somehost.dev I get the following error:

Proxy Error

Couldn't proxy request to localhost:8333.
Error: DEPTH_ZERO_SELF_SIGNED_CERT

What I've tried

In request/request#418 I found a workaround and so I added this to my .powenv. However, after a reboot of pow the problem still persists.

export NODE_TLS_REJECT_UNAUTHORIZED=0

I am using https://github.com/jugyo/tunnels to be able to use SSL for POW