'Is valid cache' is aways false

[dabit1gamma]

Hi guys. I'm using TravisCI and I cannot get cache working. Since for every build node_modules folder is rebuild autodll cannot use its cache. I tried to use travis cache and persist the content of the folder node_modules/.cache/autodll-webpack-plugin and to copy its content again before I compile the app. But it is still not working. Do you have any idea about how to use autodll with TravisCI?