问题
This is a follow-up question from How do I make the data of a web app "persistent" as opposed to "best-effort"? I want to avoid the data being cleared when there is not enough space.
According to https://developer.mozilla.org/en-US/docs/Web/API/Storage_API:
"If a box is marked as "persistent", the contents won't be cleared by the user agent without either the data's origin itself or the user specifically doing so. This includes scenarios such as the user selecting a "Clear Caches" or "Clear Recent History" option. The user will be asked specifically for permission to remove persistent site storage units."
I guess I could try to add so much data until the DB is full but is there a simpler way to trigger this? It would be great for peace of mind.
来源：https://stackoverflow.com/questions/51808863/how-can-i-simply-test-if-the-data-for-a-web-app-will-warn-the-user-before-being