How Do I Change the Content Security Policy Header in WordPress?

The Content Security Policy header is a settings directive in the HTTP protocol that allows a web server to control the security of a web page. The header is used to set a policy that determines how a web page is evaluated for potential security threats.

In WordPress, the Content Security Policy header can be used to specify which resources a web page can access.

To change the Content Security Policy header in WordPress, first open the wp-config.php file on your WordPress installation. Locate the following line of code:

define(‘CSP_SECURE’, true);

Change the value of CSP_SECURE to false to disable the Content Security Policy header.

Next, locate the following line of code:

header(‘Content-Security-Policy: default-src ‘ . ‘self';

Replace the value of default-src with the new value of your Content Security Policy header. For example, if you want to use the default-src policy from the W3C, you would use:

header(‘Content-Security-Policy: default-src ‘ . ‘self’);

Finally, locate the following line of code:

header(‘Content-Security-Policy: default-src ‘ . ‘unsafe-inline';

header(‘Content-Security-Policy: default-src ‘ . ‘unsafe-inline’);.