SIGSEV: Segmentation violation

[ToddAlvord]

After loophole has been running for some time, I get the following error

7:52PM ERR Dialing into local proxy for HTTPS failed
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x109e0d7]

goroutine 2231 [running]:
io.copyBuffer({0x2a347058, 0xc0003cec90}, {0x0, 0x0}, {0x0, 0x0, 0x0})
	/opt/hostedtoolcache/go/1.18.0/x64/src/io/io.go:426 +0x197
io.Copy(...)
	/opt/hostedtoolcache/go/1.18.0/x64/src/io/io.go:385
github.com/loophole/cli/internal/app/loophole.handleClient.func1()
	/home/runner/work/cli/cli/internal/app/loophole/loophole.go:44 +0xa5
created by github.com/loophole/cli/internal/app/loophole.handleClient
	/home/runner/work/cli/cli/internal/app/loophole/loophole.go:43 +0x15d

To Reproduce
Steps to reproduce the behavior:

1. Running loophole for >12 hours seems to do the trick

Expected behavior
I expect loophole to not crash, or to at least exit gracefully

Environment

• OS: MacOS 13.1
• Version: 1.0.0-beta.15 (5cef33)