How can I stop iOS forcing the Cracking the Cryptic web app to refresh

Post date: 2020-07-13 06:50:42

I've been doing some of the Cracking the Cryptic puzzles in the web app on my iPhone Xs (example). When doing them over an extended period of time in Safari or Chrome occasionally the page will be forced to refresh and I lose all my progress. How can I prevent this?

I am still new to these puzzles and I also tend to work on them in short sessions, so it may take me several hours of working time spread over a day or two to complete a puzzle. It's much more convenient for me to do them on my phone as I can do them in-between other things without needing to be at my computer.

I have tried both Safari (my usual browser with all my usual tabs open) and Chrome (with only the puzzle open) and both of them behave like this.

I believe I understand roughly why this is happening (to free up memory that may be needed elsewhere on the assumption that a web page can be reloaded if it's needed again) but not how to prevent this from happening in this case.

I would be happy to pay a few bucks for a good solution. I tried the Offline Pages app thinking that maybe it would manage the memory for offline pages differently (or even save the state of the page!) but it doesn't work with the CTC web app (and I'm not sure if it would have fixed the issue or not).

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