Cannot read property 'onReady' of undefined

[laggingreflex]

Getting this error on Windows, when requiring proxyquire in more than 1 files

Relatively simple reproduction here

Basically:

• a.js

  require('proxyquire')

• b.js

  require('proxyquire')

• index.js

  require('./a')
  require('./b')

Only seems to be happening on Windows (10, build 1809) and Node v11.4. Update: Narrowed down further to exactly 11.4, it still works on 11.3. I'm guessing it's a Node issue, probably introduced in 11.4

Works on Node v9.5, v10.10.

Works also on WSL (node v11.4)

[bendrucker]

This is probably the place to start looking, no idea why this would be different on Windows:

https://github.com/nodejs/node/blob/321e296371383fd63131d21c1121e22163ddeb86/lib/internal/modules/cjs/loader.js#L628