Polyfill does not work in an ES module context

[rictic]

When running as an ES Module, the global this is always undefined.

[rictic]

The best version I've got:

var polyfilledGlobalThis = 
  this !== undefined ? this :
  typeof window === 'object' ? window : 
  typeof global === 'object' ? global : 
  undefined /* or maybe throw? */;

[ljharb]

Function(‘return this’)() absolutely works in an ES Module context.

Ether way, proposal repo polyfills aren’t for production use. Use https://npmjs.com/globalthis