Duplicate code in output about extract-text-webpack-plugin HOT 4 CLOSED

While the original issue here is related to sass/less/stylus, a fix/hack/patch for this is to use the optimize-css-assets-webpack-plugin in conjunction with extract-text-webpack-plugin to produce, like this: https://gist.github.com/phun-ky/766e5ec9f75eac61c945273a951f0c0b.

If you want to use this in dev, you will have to use a plugin like write-file-webpack-plugin to force webpack to write the file to disk in dev.

from extract-text-webpack-plugin.

I'm experiencing this issue too.
Tried with DedupePlugin and UglifyJsPlugin, without success.

from extract-text-webpack-plugin.

It seems that this is something that has to be handled by the specific loader.

See, for example:
webpack-contrib/sass-loader#31

I'm facing this problem with cssnext-loader.

from extract-text-webpack-plugin.

@Zimok yeah, you’re right, the issue is happening before extract text plugin starts working

from extract-text-webpack-plugin.