ContentSecurityPolicies.php

Configuration/ContentSecurityPolicies.php

ContentSecurityPolicies.php
Scope
extension
Path (Composer)
packages/my_extension/Configuration/ContentSecurityPolicies.php
Path (Classic)
typo3conf/ext/my_extension/Configuration/ContentSecurityPolicies.php

This file provides Content Security Policies for frontend and backend.

For details see the chapter about Extension-specific Content Security Policy.