NotRestoredReasons: children property

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

The children read-only property of the {{domxref("NotRestoredReasons")}} interface returns an array of {{domxref("NotRestoredReasons")}} objects, one for each child {{htmlelement("iframe")}} embedded in the current document, which may contain reasons why the top-level frame was blocked relating to the child frames.

Each object has the same structure as the parent object — this way, any number of levels of embedded <iframe>s can be represented inside the object recursively.

Value

An array of {{domxref("NotRestoredReasons")}} objects.

If the frame has no children, the array will be empty; if the document is in a cross-origin <iframe>, children will return null.

Examples

See Monitoring bfcache blocking reasons for examples.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• Monitoring bfcache blocking reasons
• {{domxref("PerformanceNavigationTiming.notRestoredReasons")}}