Thanks, I guess I need to learn more GIMP to create original non-AI art ; ]
DragonFox
Creator of
Recent community posts
I like your comments in code, predelno prosto i yasno vse, kratkost sestra talanta)
Nice concept to reward player by activity - the more player did actions, the bigger reward with points.
Downsides are it's not intuitive how to play and as some commentator below already said — game does not provide feedback to player whether he did something right or found some combo secret (except at the end of each round).
There are few reasons why it may happen (AI answer):
-
You're not actually running it from itch page
A lot of people download the HTML build and double-clickindex.html(file://) or run it from some random place. That cannot send the required headers → boom, this exact error. -
In-app / embedded browser weirdness
If he opened it inside Discord/Reddit/itch desktop app/in-app browser, those environments sometimes don’t apply/allow the isolation correctly, even though “normal Chrome/Firefox tab” works. -
Privacy tools / corporate network stripping headers
Some extensions (ad blockers, privacy script injectors) or corporate proxies can break cross-origin isolation by altering requests/headers or injecting scripts. -
Browser/version mismatch (often Safari/iOS or outdated browsers)
Cross-origin isolation + SharedArrayBuffer support isn’t uniformly reliable everywhere; older Safari/iOS setups are common pain points.
Try these:
-
“Please open the game directly on itch in a normal desktop browser tab (latest Chrome/Firefox/Edge), not inside Discord/itch app.”
-
“Try Incognito with extensions disabled.”
-
“Make sure you didn’t download the HTML and open
index.htmllocally.” -
“Tell me your browser + version + OS (and whether you opened it inside an app).”

