How Do I Add a CSP Header in WordPress?

Adding a CSP header in WordPress is simple. All you need to do is add the following to your theme’s header.php file:

/*

This file is part of WordPress

Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018

The WordPress Foundation

All rights reserved

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

*/

.

Add CSP Header to WordPress

To add a CSP header to WordPress, you simply need to add the following code to your theme’s header.php file:

And that’s it! You’ve now added a CSP header to your WordPress site.