How to force reload custom html in ios app?

When I make a custom html file for a state card, changes never shows up in the ios app. How can I force a reload? Do I have to reinstall the app? Restart didn’t help.

On chrome i ctrl-click the refresh button.

Thanks!

I deleted the app and installed it again, and it still showed the wrong html. Is this saved in local storage or something? How can I force clear that?