Location: ancestorOrigins property

The ancestorOrigins read-only property of the Location interface is a static DOMStringList containing, in reverse order, the origins of all ancestor browsing contexts of the document associated with the given Location object.

You can use location.ancestorOrigins in the script for a document to determine, for example, whenever the document is being framed by a site which you don't expect it to be framed by. You can also use it to vary the behavior of the document based on what site or list of sites is framing it.

Value

Specifications

Specification
HTML
# dom-location-ancestororigins-dev

Browser compatibility

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desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
ancestorOrigins

Legend

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Full support
Full support
No support
No support
See implementation notes.
User must explicitly enable this feature.