banner and footer flags are not honored in minified CSS

[moos]

In package.json:

    "dist-2": "esbuild src/css/main.css --bundle --minify --footer='/* Copyright 2021 Foo */' --outfile=dist/main.css",

Result: CSS is minified, but no banner/footer is added. Also @license and /*! -- */ comments in the CSS source are not honored as they are with JS bundling.

v0.8.32

[evanw]

Yeah, sorry about that. This was a 3rd-party contribution and I initially missed that this was JS-only. Normally I try to make all of esbuild's features apply to both JS and CSS. I plan to fix this in the next round of breaking changes.

[susiwen8]

Hi, @evanw Can I take this one? It seems not that hard to implement it.