Option to disable @charset include

Is there a way to disable the auto-adding of the @charset? It can’t be present in AMP CSS - we currently use sass to compile our amp css.

We also concatenate on the server (in some rare circumstances) and if the files generated each have a charset, the resulting concatenation has several charsets inside.

I am currently using gulp-sass which wraps node-sass which uses LibSass. Is there anyway we can expose an option to disable the charset?

[nex3]

Is there a way to disable the auto-adding of the @charset?

There is not, other than manually trimming it yourself after the fact.

It can’t be present in AMP CSS - we currently use sass to compile our amp css.

We target the official CSS spec when we generate. If a downstream tool doesn’t correctly handle valid CSS, that’s an issue for that tool.

We also concatenate on the server (in some rare circumstances) and if the files generated each have a charset, the resulting concatenation has several charsets inside.

In this case, the concatenation script falls under the definition of a “downstream tool”. In order to correctly concatenate CSS, you must be resilient to the existence of @charset declarations.

Is it true it will only add it when it finds non-ascii characters? Or does it just add it regardless?

It’s only added when non-ASCII characters exist.

[lkraav]

https://sass-lang.com/documentation/cli/dart-sass#no-charset seems to say there’s a --no-charset option available.