Web features explorer - Back/forward cache blocking reasons

Web features explorer

The notRestoredReasons property of a PerformanceNavigationTiming object explains why the current document was blocked from using the back/forward cache (also known as the bfcache) on navigation.

Browser support

Chrome 125 Released on 2024-05-14
Chrome Android 125 Released on 2024-05-14
Edge 125 Released on 2024-05-17
Firefox Not supported
Firefox for Android Not supported
Safari Not supported
Safari on iOS Not supported

Need this feature?
Leave a 👍 on the feedback issue
Don't forget to also leave a comment explaining your specific use case.

MDN documentation

Specifications

HTML (#the-notrestoredreasons-interface), from HTML Workstream (WHATWG).

Usage (according to Chrome Platform Status)

~5.222% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

View as JSON | Edit this feature | Report an issue | Web-features entry: source, dist