Since `bluebird 3.6.0` my unit tests does not work anymore. The error is ``` Electron 6.0.11 (Node 12.4.0) ERROR Uncaught Error: Cannot find module 'timers' at webpack:///app/node_modules/bluebird/js/browser/bluebird.js:29:513 <- index.js:10450:289 ``` Tested with `bluebird 3.5.5` and all works fine. `3.6.0` and upper thrown this error. Any idea of the problem ? Thanks