filters.php

<?php

App::after(function($request, $response)
{
    /**
     * HTML Minification
     * https://gist.github.com/zmsaunders/5619519
     * https://gist.github.com/garagesocial/6059962
     */
    if (Config::get('project.minify.html', false) !== false)
    {
        if($response instanceof Illuminate\Http\Response)
        {
            $filters = array(
                // remove HTML comments except IE conditions
                '/<!--(?!\s*(?:\[if [^\]]+]|<!|>))(?:(?!-->).)*-->/s' => '',
                // remove comments in the form /* */
                '/(?<!\S)\/\/\s*[^\r\n]*/' => '',
                // shorten multiple white spaces
                '/>\s{2,}</' => '><',
                // shorten multiple white spaces
                '/\s{2,}/' => ' ',
                // collapse new lines
                '/(\r?\n)/' => '',
            );

            $output = $response->getOriginalContent();
            $output = preg_replace(array_keys($filters), array_values($filters), $output);
            $response->setContent($output);
        }
    }
});