Description
🐞 Bug report
Command (mark with an x)
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Is this a regression?
I don't know, we've moved directly from Angular 10 (with libraries published in ViewEngine build) to Angular 12
Description
We have a rather big library with multiple entry points (package.json/ng-packagr definition per module, built and published as one library). We have application with vendor sourcemaps enabled. In the vendor sourcemaps, none of our modules with any components are included. Modules containing only services or directives are included. This is true for both our usual applications, and simple minimal app generated .
Other situations:
- library compiled in full mode: source maps included
- vendor maps disabled: source map pointing to js files included (as expected)
- 3rd party libraries published in ViewEngine version: source maps included
- published vs npm linked library: identical behaviour
- aot true/false: identical behaviour
So it seems the source maps are somehow lost the moment angular does the local (in-app) compilation of the library components' templates.
When tested with minimal library generated by ng cli, this actually works correctly, so it is caused by something in our setup (or dependencies), but at this point I am unable to figure out what (I've matched tsconfig/angular.json settings as well as I could).
I did inspect the source maps generated in the library and as far as I can tell, they're correct (paths pointing to the correct folders etc)
🔬 Minimal Reproduction
As the library is big and not public, it's not easy for me to provide reproduction. I will try to see if I can duplicate the issue by expanding the sample library; but at this point I would appreciate pointers that would help us to identify the problem. I am willing to debug the compilation pipeline, if there is an obvious starting point.
🌍 Your Environment
Angular CLI: 12.1.0
Node: 12.18.2
Package Manager: npm 6.14.11
OS: win32 x64
Angular: 12.1.1
... animations, cdk, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router
Package Version
---------------------------------------------------------
@angular-devkit/architect 0.1201.0
@angular-devkit/build-angular 12.1.0
@angular-devkit/core 12.1.0
@angular-devkit/schematics 12.1.0
@angular/cli 12.1.0
@schematics/angular 12.1.0
ng-packagr 12.1.0
rxjs 6.6.7
typescript 4.3.5
Anything else relevant?
No