web api instance property
NotRestoredReasons: src property
Limited availability
The src read-only property of the
NotRestoredReasons interface returns a string representing the path to the source of the <iframe> the document is contained in (for example <iframe src="/firefox/mdn-asset-missing.svg">).
Value
A string.
If the document is not in an <iframe>, src will return null.
Examples
See Monitoring bfcache blocking reasons for examples.
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.