Multiple CSP playground
This page has a strict CSP (via HTTP headers) enforced, and one more CSP in report-only mode. This loads a couple of images and scripts that try to overcome the CSP.
Image loaded from example.com
This endpoint will be blocked by CSP, and image load will fail
Image loaded from images.unsplash.com
This endpoint is allowed by CSP, and image will load
Photo by Eugene Chystiakov on Unsplash