@nrwl/web:rollup creates a CJS file when choosing UMD as format

Current Behavior

@nrwl/web:rollup creates a .cjs file when choosing umd as build format

See screenshot:

The content of the .cjs file looks like umd format:

So it seems to be just the wrong file extension.

I saw the issue the first time in NX 14. NX 13.x was still OK.

Expected Behavior

@nrwl/web:rollup should create a .umd file if umd was chosen in the build format.

Steps to Reproduce

You can try it in my project (mini-rx-store) on the nx14 branch: https://github.com/spierala/mini-rx-store/tree/nx14

Environment

Node : 16.15.1 OS : darwin x64 npm : 8.11.0

nx : 14.2.4 @nrwl/angular : 14.2.4 @nrwl/cypress : 14.2.4 @nrwl/detox : Not Found @nrwl/devkit : 14.3.6 @nrwl/eslint-plugin-nx : 14.2.4 @nrwl/express : Not Found @nrwl/jest : 14.2.4 @nrwl/js : 14.2.4 @nrwl/linter : 14.2.4 @nrwl/nest : Not Found @nrwl/next : Not Found @nrwl/node : Not Found @nrwl/nx-cloud : 14.0.8 @nrwl/nx-plugin : Not Found @nrwl/react : Not Found @nrwl/react-native : Not Found @nrwl/schematics : Not Found @nrwl/storybook : 14.2.4 @nrwl/web : 14.2.4 @nrwl/workspace : 14.2.4 typescript : 4.7.3

Community plugins: @jscutlery/semver: 2.25.2

[alinaMihai]

it also mentions that UMD format is deprecated and will be removed in Nx 15, and I am a bit concerned as well because I am using the umd version of a package for running in a node environment.

[herrKlein]

I really don’t know why UMD support has been ditched, its still in the web:rollup. And I need it to compile our webcomponent library for use with simple CDN import.