nl_tokens: Get the contents of CSS files .
pl_tokens: function getStylesheets ( files , options , pages ) { if ( options . stylesheets && <mask> . stylesheets . length ) { /* Simulate the behavior below */ return Promise . resolve ( [ files , options , pages , [ options . stylesheets ] ] ) ; } /* Extract the stylesheets from the HTML */ return Promise . all ( pages . map ( ( page ) => jsdom . getStylesheets ( page , options ) ) ) . then ( ( stylesheets ) => [ files , options , pages , stylesheets ] ) ; }