Configure HTML Purifier Settings in SugarCRM (src/include/clean.php)

clean.php

<?php

class SugarCleaner
{
 
(...)

    function __construct()
    {
        global $sugar_config;
        $config = HTMLPurifier_Config::createDefault();
     
        (...)
        
        // Non upgrade safe change
        // Allow <a> tag to open links in new window (target="_blank")
        $config->set('Attr.AllowedFrameTargets',  array('_blank' => true));
    }
(...)
}