Fence: getNestedConfigs() method
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The getNestedConfigs() method of the
Fence interface returns the FencedFrameConfigs loaded into <fencedframe>s embedded inside the current <fencedframe>.
Syntax
js
getNestedConfigs()
Parameters
None.
Return value
getNestedConfigs() has two possible return values:
- An array of 20
FencedFrameConfigobjects, if the current<fencedframe>'s config was created using an API that supports nested configs (for example Protected Audience). Of these 20 configs, the first N configs are those registered through the API and the rest are padding configs that will navigate toabout:blank, so that the number of configs is hidden and cannot leak any information. nullif the current<fencedframe>'s config was created using an API that does not support nested configs (for example Shared Storage).
Examples
js
// Run inside a <fencedframe>
// Retrieve the configs of embedded fenced frames
const configs = window.fence.getNestedConfigs();
// Set a new fenced frame's config to equal one of the retrieved configs
const frame = document.createElement("fencedframe");
frame.config = configs[0];
Specifications
| Specification |
|---|
| Fenced Frame # dom-fence-getnestedconfigs |
Browser compatibility
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See also
- Fenced frames on privacysandbox.google.com
- The Privacy Sandbox on privacysandbox.google.com