[Solved] CRSF and custom templates

I have a custom template for the Event type; it causes CRSF issues when viewing events using different views (standard vs custom). It happens only when authenticated.

Is there a way to inform Plone that a custom template is "safe" (just like a standard template)?

Update: it happens even when viewing different events using the custom template (without viewing an event with the standard template), so it looks like an issue with the template.

I recently used IDisableCSRFProtection.
You can read more about it here: https://pypi.org/project/plone.protect/
I'm assuming you have a supporting .py file with your template.

You can see an example of it being used here:

I used it before to solve another issue.

I found the problem; the custom view (but I'm not going to explain here).
So please excuse the noise.