dedupeInlineCSS.js

var _ = require( 'lodash' );

module.exports = function ( html ) {

	var anyInlineCssTag = new RegExp( '<style type="text/css">[^<]*</style>', 'g' );

	var matches = html.match( anyInlineCssTag );

	_.uniq( matches ).forEach( function( styleTag ) {

		var htmlWithOutStyleTag = html.split( styleTag );

		html = htmlWithOutStyleTag[ 0 ] + styleTag + htmlWithOutStyleTag.splice( 1 ).join( '' );

	});

	return html;

}