[bootstrap-4] No UMD dist for bootstrap-4 theme

Prerequisites

• I have read the documentation;
• In the case of a bug report, I understand that providing a SSCCE example is tremendously useful to the maintainers.
• Ideally, I’m providing a sample JSFiddle or a shared playground link demonstrating the issue: https://jsfiddle.net/v7ka24od/1/

Description

Bootstrap4 theme doesn’t allow UMD/AMD use, while core does. As far as I understand, this makes the dist versions built with npm run build impossible to use via RequireJS (bootstrap-4.cjs.production.min.js, bootstrap-4.esm.js).

Steps to Reproduce

1. run npm install, npm run build as per docs
2. Include dist files into project
3. use requirejs.config to include rjsf/rjsf-bs4
4. see e.g. 'exports' is undefined

Expected behavior

1. run npm install, npm run build
2. find umd dist in bootstrap-4 module

Actual behavior

There are no umd files in bootstrap-4 dist – see https://jsfiddle.net/v7ka24od/1/

Version

v2.4.0

[EricLanduyt]

would indeed be nice to have this, as I suppose it would also allow using all the themes from various CDNs, which seems impossible so far. 😦

ex: https://www.jsdelivr.com/package/npm/@rjsf/material-ui?path=dist

[stringfellow]

Thanks for the hint @epicfaace - I’m afraid I’m so far removed from typescript/webpack/etc workflows and working environment that this is almost a new technology to me right now (versus using r.js and AMD) - is it an onerous task or a simple config change? (i.e. is it something that someone who knows how that workflow works, could do with small effort; or is it a more fundamental change to the way this library is built?)

I wish I were more up to date with this and could help fix it 😦