itch.io Community » itch.io » Questions & Support

Resolved: CORS error when trying to run Unity WebGL game on itch.io?

A topic by Midnite Oil Software LLC created Jul 26, 2020 Views: 2,855 Replies: 3

Viewing posts 1 to 3

Midnite Oil Software LLC4 years ago (2 edits)

Greetings, I have published a draft of a Unity 3D WebGL game to itch.io but when I try to run it I get the error "Access to XMLHttpRequest at 'https://googleads.g.doubleclick.net/pagead/id' from origin 'https://www.youtube.com' has been blocked by CORS policy. It looks like it's trying to call into google ads (I did not add ad support so far as I know) and is blocked by CORS.

Further down it says "Uncaught ReferenceError: unityFramework is not defined at HTMLScriptElement.n.onload.

I assume there's some configuration change I need to make to get this work. Can someone point me in the right direction?

Thanks!

Like Reply

Midnite Oil Software LLC4 years ago(+1)

Disabling compression in the Publishing settings fixed this.

Like Reply

leafoAdmin4 years ago (1 edit) (+1)

I don’t think this has anything to do with us. It looks like you have a youtube embed in your project that might be causing it. I think the error about youtube and google ads is ignorable, and the real error is listed immediately below that with “Invalid or unexpected token”

Like Reply

Midnite Oil Software LLC4 years ago(+1)

Yes, it was the GZIP compression that was causing the error. As for the youtube/googleads embedding, I'm guessing Unity is including them somehow by default when I build the project. I'll need to research that.

Like Reply

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