Emit external component styles sourcemap when optimization is enabled

[alan-agius4]

Command

build

Description

Currently, when optimization is enabled, components sourcemaps are always disabled.

Describe the solution you'd like

This is a request to add support for CSS sourcemaps for components when optimization is enabled which can be done by instead of inline sourcemaps as base64 in the JS file we emit the sourcemap as an external file.

This does come with the drawback that a lot of .map files will be emitted. (1 per component stylesheet)

More context: https://github.com/angular/angular-cli/issues/22834

[angular-robot[bot]]

This feature request is now candidate for our backlog! In the next phase, the community has 60 days to upvote. If the request receives more than 20 upvotes, we'll move it to our consideration list.

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[angular-robot[bot]]

Just a heads up that we kicked off a community voting process for your feature request. There are 20 days until the voting process ends.

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[angular-robot[bot]]

Thank you for submitting your feature request! Looks like during the polling process it didn't collect a sufficient number of votes to move to the next stage.

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