← Chrome 153 reference

v153 · privacy-sandbox · storage-access · deprecation · covered on mdn

Deprecate and Remove: document.requestStorageAccessFor()

Chrome 153 removes document.requestStorageAccessFor() (rSAFor), a top-level page API that allowed sites to request Storage Access on behalf of embedded cross-site resources. rSAFor was only useful in conjunction with Related Website Sets, which is also being removed.

this feature is documented on MDN

MDN: Document.requestStorageAccessFor()

MDN's Document.requestStorageAccessFor() reference covers the API, and MDN's Storage Access API documentation records it as “a non-standard deprecated extension”. Chrome 153's removal completes that deprecation. gendn doesn't duplicate the API reference here. (This stub cites MDN's rSAFor page directly per the Campaign T retarget note.)

quick reference

Shipped inChrome 153 (Stepped rollout — removal begins)
StatusDeprecation / removal in progress
Replacementdocument.requestStorageAccess() called from within the embedded iframe
Standards position (Firefox)No signal
Standards position (Safari)No signal
ChromeStatus5162221567082496 — Deprecate and Remove: document.requestStorageAccessFor()
Source: chromestatus.com/feature/5162221567082496; MDN, October 2026.