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Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
The featurePolicy read-only property of the HTMLIFrameElement interface returns the FeaturePolicy interface which provides a simple API for introspecting the Permissions Policies applied to a specific frame.
A FeaturePolicy object that can be used to inspect the Permissions Policy settings applied to the frame.
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This page was last modified on May 9, 2026 by MDN contributors.
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