sourceMappingURL comment is removed in minification

[iambalaam]

I'm struggling to minify my css, and keep the sourceMappingURL comment to my .css.map file.

On the minification branch of this minimal repo I have added a minimizer

new OptimizeCSSAssetsPlugin({
    cssProcessorOptions: {
        map: { inline: false }
    }
})

Before adding this minimizer

I get unminified .css and a .css.map file but a correct map back to the .scss file.

After adding this minimizer

I get minified .css and a .css.map file, but the sourceMappingURL comment has been removed

[anlambert]

I encountered the same issue today. You can find the fix here: #81 (comment)

[iambalaam]

This works correctly - thank you!