Proposal: Make it possible to build out projects using native modules

[matthewp]

With native modules in browsers, some teams might choose to use those in development. It could look something like this:

development.html

<title>Our app</title>
<script type="module" src="./app.js"></script>

app.js

import { Component } from "//unpkg.com/can@5/core.mjs";

Component.extend({ ... })

Currently, trying to build this in steal-tools will cause errors.

To make this work we would want:

• Support for loading modules that start with either /, //, http and https which we currently can't do.
• Since unpkg supporters semver, it would be great if we could do semver to normalize to the same module. For example //unpkg.com/can@5/core.mjs and //unpkg.com/can@^5.0.0/core.mjs should normalize to the same module.