Warning about MaxListenersExceededWarning

[arananegra]

Hi there,

When using your plugin along with several webpack entries + po languages (15 po files) a warning on node is displayed.

(node:12160) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 exit listeners added to [process]. Use emitter.setMaxListeners() to increase limit
I think that the main problem is that there are many listeners processing all the javascript files (multiplying each webpack js entry by the number of languages).

I have also noticed that the css files are being also processed with this plugin (generating css files per language when this is not something that is wanted).

I have tried your option to excludedPlugins (passing the mini-css-extract-plugin as parameter) but this triggers compilation errors.