[j0d1]

Try cleaning your browser local storage for https://gg-charts.com.

There is currently a bug in the app that let someone inject a JS snippet to execute (to confirm) in the URL "file" property. The app then save the content of that "file" property in the local storage, so every time you open https://gg-charts.com, it loads this data from local storage and re-execute the JS snippet.

I'll fix that today, sorry for the inconvenience. :-/ The web is the far west!