TypeError: Cannot read property 'host' of null

Back-end randomly crashes soon after starting regardless of whether I actually connect or interact with it at all. Here's the console output and npm-debug.log:

stdout

raevox@MOTHERSHIP:/mnt/d/Development/Pokemon GO/Enhanced-Backend $ npm start

> pokemongo-enhanced@1.0.0 start /mnt/d/Development/Pokemon GO/Enhanced-Backend
> cross-env NODE_ENV=production node ./lib/server.js

[+++] PokemonGo MITM Proxy listening on 8080
[!] Make sure to have the CA cert .http-mitm-proxy/certs/ca.pem installed on your device
/mnt/d/Development/Pokemon GO/Enhanced-Backend/node_modules/http-mitm-proxy/lib/proxy.js:708
    host: hostPort.host,
                  ^

TypeError: Cannot read property 'host' of null
  at Proxy._onHttpServerRequest (/mnt/d/Development/Pokemon GO/Enhanced-Backend/node_modules/http-mitm-proxy/lib/proxy.js:708:19)
  at emitTwo (events.js:106:13)
  at Server.emit (events.js:191:7)
  at HTTPParser.parserOnIncoming [as onIncoming] (_http_server.js:543:12)
  at HTTPParser.parserOnHeadersComplete (_http_common.js:105:23)

npm ERR! Linux 3.4.0+
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "start"
npm ERR! node v6.3.0
npm ERR! npm  v3.10.6
npm ERR! code ELIFECYCLE
npm ERR! pokemongo-enhanced@1.0.0 start: `cross-env NODE_ENV=production node ./lib/server.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the pokemongo-enhanced@1.0.0 start script 'cross-env NODE_ENV=production node ./lib/server.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the pokemongo-enhanced package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     cross-env NODE_ENV=production node ./lib/server.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs pokemongo-enhanced
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls pokemongo-enhanced
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /mnt/d/Development/Pokemon GO/Enhanced-Backend/npm-debug.log

npm-debug.log:

0 info it worked if it ends with ok
1 verbose cli [ '/usr/bin/nodejs', '/usr/bin/npm', 'start' ]
2 info using npm@3.10.6
3 info using node@v6.3.0
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle pokemongo-enhanced@1.0.0~prestart: pokemongo-enhanced@1.0.0
6 silly lifecycle pokemongo-enhanced@1.0.0~prestart: no script for prestart, continuing
7 info lifecycle pokemongo-enhanced@1.0.0~start: pokemongo-enhanced@1.0.0
8 verbose lifecycle pokemongo-enhanced@1.0.0~start: unsafe-perm in lifecycle true
9 verbose lifecycle pokemongo-enhanced@1.0.0~start: PATH: /usr/lib/node_modules/npm/bin/node-gyp-bin:/mnt/d/Development/Pokemon GO/Enhanced-Backend/node_modules/.bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:node_modules/.bin
10 verbose lifecycle pokemongo-enhanced@1.0.0~start: CWD: /mnt/d/Development/Pokemon GO/Enhanced-Backend
11 silly lifecycle pokemongo-enhanced@1.0.0~start: Args: [ '-c', 'cross-env NODE_ENV=production node ./lib/server.js' ]
12 silly lifecycle pokemongo-enhanced@1.0.0~start: Returned: code: 1  signal: null
13 info lifecycle pokemongo-enhanced@1.0.0~start: Failed to exec start script
14 verbose stack Error: pokemongo-enhanced@1.0.0 start: `cross-env NODE_ENV=production node ./lib/server.js`
14 verbose stack Exit status 1
14 verbose stack     at EventEmitter.<anonymous> (/usr/lib/node_modules/npm/lib/utils/lifecycle.js:255:16)
14 verbose stack     at emitTwo (events.js:106:13)
14 verbose stack     at EventEmitter.emit (events.js:191:7)
14 verbose stack     at ChildProcess.<anonymous> (/usr/lib/node_modules/npm/lib/utils/spawn.js:40:14)
14 verbose stack     at emitTwo (events.js:106:13)
14 verbose stack     at ChildProcess.emit (events.js:191:7)
14 verbose stack     at maybeClose (internal/child_process.js:852:16)
14 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:5)
15 verbose pkgid pokemongo-enhanced@1.0.0
16 verbose cwd /mnt/d/Development/Pokemon GO/Enhanced-Backend
17 error Linux 3.4.0+
18 error argv "/usr/bin/nodejs" "/usr/bin/npm" "start"
19 error node v6.3.0
20 error npm  v3.10.6
21 error code ELIFECYCLE
22 error pokemongo-enhanced@1.0.0 start: `cross-env NODE_ENV=production node ./lib/server.js`
22 error Exit status 1
23 error Failed at the pokemongo-enhanced@1.0.0 start script 'cross-env NODE_ENV=production node ./lib/server.js'.
23 error Make sure you have the latest version of node.js and npm installed.
23 error If you do, this is most likely a problem with the pokemongo-enhanced package,
23 error not with npm itself.
23 error Tell the author that this fails on your system:
23 error     cross-env NODE_ENV=production node ./lib/server.js
23 error You can get information on how to open an issue for this project with:
23 error     npm bugs pokemongo-enhanced
23 error Or if that isn't available, you can get their info via:
23 error     npm owner ls pokemongo-enhanced
23 error There is likely additional logging output above.
24 verbose exit [ 1, true ]

I'm running Windows 10 with WSL, and I get the feeling it's mostly likely an environment-specific issue. However, it's really late and I'm too tired to uninstall MSVS 2015, get an older version, build libprotobuf, and finally confirm whether this is a WSL-specific issue or not. I'll do that tomorrooow...

P.S. There's no real difference between debug/production output.

PokemonGo-Enhanced / Enhanced-Backend

TypeError: Cannot read property 'host' of null #10