Sorry to hear that, if you still wanna try it I made the test login accessible "pimtest" as name & password.
I will add it in the installation detail in case it happen to other people, thank you.
Hey, It's sad it doesn't display install instruction on submission page but it's on the main page of the project.
In the zip archive you have a .exe named "HTML5LaunchHelper.exe", you launch it it will start a local server.
In your browser you enter the link http://localhost:8000/ and it will open the access of the project folder and from this you click on the index.html to launch the game.
This is weird this error happen only if you don't enter the local server created by the Helper exe (http://localhost:8000/)
I wanted to make it html because it's easier for people to play it but got an issue (different than the size one) that was blocking the upload on any website, so I uploaded (by luck after few hours of the 1st deadline because it was also blocking its upload xD) the zip before going to sleep.
If I knew I'd have this issue at the beginning I would have gone for a standalone in the late version of the engine 😅