Hi, I'm using angular2 with browserify and noticed that I had to require('zone.js/lib/browser/zone-microtask') instead of require('zone.js') after a few hours of struggle. But it throws the following error unless I don't npm install -S es6-promise at the top level of my app.

Error: Cannot find module 'es6-promise' from '/path/to/my/app/node_modules/zone.js/lib/browser'

What do you think about putting es6-promise in dependencies instead of devDependencies? It is required by zone-microtask, which could be considered as a part of the library body, even though it's not in package.json#main.

Cheers