Limited Availability
Clearing site data
The
Clear-Site-Data header deletes browsing data (such as cookies, storage, or cache) associated with the requesting website.
Baseline Status:
This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Apr 29, 2025.
Desktop Browser Engine Support
Google Chrome
—
Unsupported
Mozilla Firefox
138
Supported
Apple Safari
17
Supported
Microsoft Edge
—
Unsupported
Mobile Browser Engine Support
Chrome Android
—
Firefox Android
138
Safari iOS
17
Specifications and References
MDN Browser Compat Data Keys:
http.headers.Clear-Site-Data ↗
http.headers.Clear-Site-Data.cache ↗
http.headers.Clear-Site-Data.clientHints ↗
http.headers.Clear-Site-Data.cookies ↗
http.headers.Clear-Site-Data.executionContexts ↗
http.headers.Clear-Site-Data.prefetchCache ↗
http.headers.Clear-Site-Data.prerenderCache ↗
http.headers.Clear-Site-Data.secure_context_required ↗
http.headers.Clear-Site-Data.storage ↗
http.headers.Clear-Site-Data.wildcard ↗
id: clear-site-data