If you have enabled the Content Filtering features of Kiosk, and you attempt to view a page that is not allowed by the configured settings, you'll receive an error message similar to the following:
The page you requested could not be loaded due to content restrictions in effect on this system.
To ensure the security of files on your local computer, macOS restricts applications via a technique referred to as "sandboxing". Applications (like Kiosk) that wish to access
files outside of their sandbox can only do so if a user action has specifically requested that the application access that file.
To work within these security controls, Kiosk requires you to configure which folders contain content you wish to allow Kiosk to access locally. You can configure this in the
Security Preferences, under the Content Policies section. For a locally hosted page to work correctly, you must add any folder
which contains references that the page needs to access to this list.
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