Neuber, Eugen Ramon authored 5 years ago and Reiter, Christoph committed 4 years ago

see https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/readyState

customElements isn't defined there

This means less dom change on load

So that packages depending on it install it as well

node-resolve wasn't limited to the local node_modules and picked up the
dependency from another package on my machine.

So that rollup can do tree shaking and report import errors.

When specifying a package for code splitting, rollup requires the
packages to have a valid entry point for some reason.

Add an empty one.

So rollup doesn't have to convert them (and potentially fail)