Confluence.net::Draw.io: Diagram Not found

Question

I have a 14 day temporary licence to play with Confluence but I have been using it for 10 years in the office. Here, I added Draw.io to my space to draw some diagrams. I made a simple 6-10 object diagram and saved the Confluence page.

Now it says when I open the page that "Diagram Not Found"

When I click on "draw.io Diagram" in the APPS menu on the left, it lists my new diagram in the "draw.io Diagrams" list, but when I click on Edit it, it says "ac.draw.io Read Error: Error loading file"

JavaScript is enabled.

The same problem occurs in Firefox and Chrome.

Any help is appreciated.

Thanks guys.

Norbert Murzsa_bxfjbn · Answer

I found this earlier discussion about the same (with your involvement): https://community.atlassian.com/t5/Confluence-questions/Draw-io-Diagram-Not-Found/qaq-p/2328073

I also use Kaspersky, so I will have a look at it first.

David Benson _draw_io_ · Answer

What browser are you using? Any browser extensions? It's worth testing in incognito/private mode with extensions switched off.