Running SingleSpa Micro-frontend in Dev standalone mode with no Internet access

[alexf2]

Hi, folks!

Need a piece of advice regarding a good way to override dependencies of Single-Spa running Micro frontend in standalone mode.

The point is that I need to run my Micro frontend in dev standalone mode under Webpack Dev server in an environment where there is no Internet access. It fails as React Single-spa includes a number of libs from a public CDN.

Looking for a solution, I've seen it is possible to configure an overriding in some way, but didn't come to a good recipe. Prefer picking all external deps from node_modules.

Next external deps are in index.html, which generates Single-spa in dev mode:

"imports": {
    "single-spa": "https://cdn.jsdelivr.net/npm/single-spa/lib/system/single-spa.dev.js",
    "@corp/myapp": "/corp-myapp.js"
  }
// all from cdn.jsdelivr.net
import-map-overrides.js
fetch.umd.js
polyfill.min.js
runtime.min.js
system.js
amd.js