Answer posted by Dan Letecky [DayPilot] 1 years ago.
The latest release (2025.3.6564) now detects the nonce used by scripts and stylesheets on the page and uses it when registering the built-in stylesheet. You shouldn’t see this error anymore.
If you use the same nonce value for styles and scripts, you can simply add it to the <script> that imports DayPilot: