Excludes does not work correctly.

[aadrian]

Grails 2.5.4 + Java 8 + asset-pipeline-2.9.1 does not seem to work correctly when excluding some file types:
The following grails.assets.excludes=["**/*.json"] should exclude all JSON files, but after running asset-precompile the output directory still contains many JSON files (e.g. bower.json ). This is true for other file types too.

[cmdcolin]

I also can't get the excludes to work properly with a similar setup. Not sure if it's related to this issue though. I'm not using the grails-app/assets directory but it's trying to run preprocessing on things in grails-app/web-app which I'd prefer was just left as is ?