Checks links on a website for the _blank attribute and adds the noopener and noreferrer tags if they don't exist - see https://dev.to/ben/the-targetblank-vulnerability-by-example
$(document).ready(function(){
$('a').each(function() {
if(
$(this).attr('target') == '_blank' ||
$(this).attr('rel') == 'noopener' ||
$(this).attr('rel') == 'noreferrer' ) {
$(this).attr('rel', 'noopener noreferrer');
}
});
});