ESM support (type=module + exports={})

[Damiano]

Would you consider adding support for ESM?
https://nodejs.org/api/esm.html#esm_main_entry_point_export
Node v13 already has ESM enabled by default, and node v14 will be here in a couple of weeks.

An opt-in solution could be given in the following way (I guess, not tested):

• another available entrypoint like common-tags/esm
• built and exposed holding a package.json with type=module and exports field in place

[fatfisz]

Ok, I'll try to implement that; or would you be willing to provide a PR?

[Hexagon]

This is fixed in the fork proper-tags at https://github.com/hexagon/proper-tags published to npmjs.com/package/proper-tags and deno.land/x/proper_tags