Error uploading a compiled HTML to itch.io - ChoiceScript Help - Choice of Games Forum

I am trying to upload the alpha version of my game to itch.io, where I can easily restrict access to it with a password. I managed to compile the game to HTML through CSIDE, no problem. The HTML file plays locally on Firefox, no problem. Per itch.io’s instructions, I zip the index.html file with the header image and upload the zip file. I get this error: Permission denied to access property “side” on cross-origin object. From a little research on other people who encountered similar error

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