mdw-workflow/assets/com/centurylink/mdw/node/webpackConfig.js
function(modulePath) {
              var assetRoot = path.resolve(__dirname, '../../../..');
              return modulePath.startsWith(assetRoot) && 
                !modulePath.startsWith(assetRoot + path.sep + 'node' + path.sep + 'node_modules');
            }
function(modulePath) {
              var assetRoot = path.resolve(__dirname, '../../../..');
              return modulePath.startsWith(assetRoot) && 
                !modulePath.startsWith(assetRoot + path.sep + 'node' + path.sep + 'node_modules');
            }
allows custom css files in assets (but excluding node/node_modules)