It's new, and you can still save pages. Browsers will do their best to include all resources they depend as well.
> Using a proper application platform instead
Which one? Is there any cross-platform one with consistent design and UX? I don't think so.
No, I can't. That does not work reliably.
> Browsers will do their best
In other words, they will fail.
> Which one? Is there any cross-platform one with consistent design and UX? I don't think so.
Frankly, even Electron applications are better than making web pages that behave incorrectly.
In all your given examples, it does.
> Frankly, even Electron applications are better than making web pages that behave incorrectly.
You know that 90% of Electron apps do not have any native function calls and are just wrappers on top of a web-app?
I just don't understand what you are criticizing anymore.
That does not make sense. If they made no native function calls, they could not even display a window.