[thestepafter]

A couple versions ago mobile browsers started clearing cache when you leave the application to help save battery life if I remember correctly. Very annoying because now I am unable to open a bunch of tabs in Safari for HN threads before I go off grid.

[buchanaf]

This sounds made up.

[wwweston]

Whether the reason is true, the behavior seems more or less consistent with my experience. Mobile Safari caching seems forgetful on surprisingly short horizons (especially when low power mode is on). Mobile Firefox seems better but sucks down battery life on the order that Google / Apple Maps in active navigation do.

If you have a reason to believe the reality is different, though, happy to hear about more details beyond "this sounds made up."