Skip to main content

Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs
TagsGame Engines

" SecurityError: Failed to read a named property 'constructor' from 'Window': Blocked a frame with origin "https://html-classic.itch.zone" from accessing a cross-origin frame."

A topic by MagstarDev created Jun 06, 2025 Views: 68
Viewing posts 1 to 1

Hey! Uploading my first web game here (made in js with vite) for some reason i get these weird errors in itch.io and my game doesnt play. Sometimes it doesnt load, other times it's stuck at main menu.
I uploaded all the contents as a zip folder, tested it locally but for some reason it crashes on itch.io.

Uncaught (in promise) SecurityError: Failed to read a named property 'constructor' from 'Window': Blocked a frame with origin "https://html-classic.itch.zone" from accessing a cross-origin frame.

    at vs (index-CPBXGlGF.js:53:107699)

    at index-CPBXGlGF.js:53:107224

    at index-CPBXGlGF.js:53:108771

    at Xi (index-CPBXGlGF.js:53:107177)

    at vs (index-CPBXGlGF.js:53:107733)

    at index-CPBXGlGF.js:53:107224

    at index-CPBXGlGF.js:53:108771

    at Xi (index-CPBXGlGF.js:53:107177)

    at index-CPBXGlGF.js:53:111186

    at index-CPBXGlGF.js:53:108632

This topic has been auto-archived and can no longer be posted in because there haven't been any posts in a while.