COEP demo

Works on Chrome 83+ or Firefox 76+.

1. Load this page with a COEP header.

2. See how COEP affected a cross-origin image and a cross-origin iframe.

I am a cross-origin image

3. Load the cross-origin image with various CORP headers to see how they affect.

I am a cross-origin iframe window

4. Load the cross-origin iframe with various headers and see how they affect.