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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: 2,860 Replies: 3

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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!

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Midnite Oil Software LLC4 years ago(+1)

Disabling compression in the Publishing settings fixed this.

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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”

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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.

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