Local Storage falls apart on iPad/iPhone, unfortunately. The data is deleted if you don’t visit the site often enough. I lost my Wordle stats over a vacation this way.

Even worse, if you have an HTML game hosted on itch.io (which uses a cross-domain iframe, for security), Safari just silently discards all Local Storage when you close the tab, with no option to disable this behavior on a specific site.

I know Local Storage is supposed to be just a cache, but I really wish we had opt-in durable storage…