Cannot build with modules only

🐞 Bug report

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• update
• lint
• extract-i18n
• run
• config
• help
• version
• doc

Is this a regression?

I guess

Description

I am trying to build our app for modern browsers only (only type=module) but cannot get it working. Using a fresh ng new does not even work. I have created a browserslist in the root containing only “last 2 chrome versions” and left the target at “es2017” (ng g application did that). Even using “es2015” does not work.

🔬 Minimal Reproduction

1. ng new test --defaults --no-create-application
2. cd test
3. ng g application test --defaults
4. echo “last 1 Chrome version” > .browserslistrc
5. ng build
6. cat dist/test/browser/index.html
7. No es6 modules generated

🔥 Exception or Error

None

🌍 Your Environment

Angular CLI: 12.2.0
Node: 12.22.2
Package Manager: npm 6.14.13
OS: win32 x64

Angular: 12.2.0
... animations, cli, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1202.0
@angular-devkit/build-angular   12.2.0
@angular-devkit/core            12.2.0
@angular-devkit/schematics      12.2.0
@schematics/angular             12.2.0
rxjs                            6.6.7
typescript                      4.3.5

Anything else relevant?

[alan-agius4]

In that case, this has been addressed in version 13 which is currently in pre-release stage via the linked PR above.

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