The page lifecycle API helps you safely handle page suspensions or discards from memory. The freeze and resume events fire when the browser suspends or resumes a page from memory while the document.wasDiscarded property reports whether the page was reloaded after being dropped.

Learning resources on MDN

No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.

Browser support

• Chrome 68 Released on 2018-07-24
• Chrome Android 68 Released on 2018-07-24
• Edge 79 Released on 2020-01-15
• Firefox ❌
• Firefox for Android ❌
• Safari ❌
• Safari on iOS ❌

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