Anyone who's exported the project to HTML5 soon realized they couldn't test it on their own computer without uploading it to a server. Why? Because CORS policy, that's why! It's a security thing that all browser enforce rather strictly these days. But there's a way around it. Launch the browser with web security disabled. As of right now, this doesn't appear to work in FF any longer but Chrome 123 it does. I don't know if you can disable it with Edge.
- Create a new shortcut to Chrome on your desktop
- Edit the Target under the shortcut properties by adding the --disable-web-security flag
Ex. "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-web-security
Important things to consider and why I say to create a new shortcut. Label it "Chrome no CORS" so you know what it is. Don't browse the web with this instance of chrome because... security. Also, in the event chrome crashes or you close it by accident, when you restore your session this instance will no reopen automatically (which is probably a good thing).