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NotRestoredReasonDetails

files/en-us/web/api/notrestoredreasondetails/index.md

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{{APIRef("Performance API")}}{{SeeCompatTable}}

The NotRestoredReasonDetails interface of the {{domxref("Performance API", "Performance API", "", "nocode")}} represents a single reason why a navigated page was blocked from using the back/forward cache ({{Glossary("bfcache")}}).

An array of NotRestoredReasonDetails objects can be accessed via the {{domxref("NotRestoredReasons.reasons")}} property.

Instance properties

  • {{domxref("NotRestoredReasonDetails.reason", "reason")}} {{ReadOnlyInline}} {{Experimental_Inline}}
    • : A string describing a reason that the page was blocked from using the back/forward cache.

Instance methods

  • {{domxref("NotRestoredReasonDetails.toJSON", "toJSON()")}} {{Experimental_Inline}}
    • : A {{Glossary("Serialization","serializer")}}; returns a JSON representation of the NotRestoredReasonDetails object.

Examples

See Monitoring bfcache blocking reasons for examples.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also