nl_tokens: Get the contents of HTML pages through jsdom .
pl_tokens: function getHTML ( files , options ) { if ( _ . isString ( files ) ) { files = [ files ] ; } files = _ . flatten ( files . map ( ( file ) => { if ( ! isURL ( file ) && ! isHTML ( file ) ) { return glob . sync ( file ) ; } return file ; } ) ) ; if ( ! files . length ) { return Promise . reject ( new Error ( 'UnCSS: no HTML files found' ) ) ; } // Save files for later reference. <mask> . files = files ; return Promise . all ( files . map ( ( file ) => jsdom . fromSource ( file , options ) ) ) ; }