This GitHub issue is for collecting web developer signals for Clearing site data.
The Clear-Site-Data header deletes browsing data (such as cookies, storage, or cache) associated with the requesting website.
Browser support





- Chrome: not supported
- Chrome Android: not supported
- Edge: not supported
- Firefox 138 (Apr 29, 2025)
- Firefox for Android 138 (Apr 29, 2025)
- Safari 17 (Sep 18, 2023)
- Safari on iOS 17 (Sep 18, 2023)
Give us feedback
If you're pressed for time, but you want this feature to be available in all browsers, please give this issue a thumbs up 👍 reaction.
However, a much better guide for us is to know how you'd use this feature, and what you're having to do in the meantime. This helps us judge the priority versus other features.
Copy the template below in a comment, and add the details that matter to you.
## What I want to do with this feature
<!-- Add your specific use-cases, even if they seem obvious to you. -->
## What I'm having to do in the meantime
<!--
Are you having to use another feature instead, a polyfill, or is it blocking you completely?
Why are the alternatives worse than using this feature?
-->
All comments are expected to adhere to the Code of Conduct.
Learn more
You can learn more about this feature here:
This GitHub issue is for collecting web developer signals for Clearing site data.
The
Clear-Site-Dataheader deletes browsing data (such as cookies, storage, or cache) associated with the requesting website.Browser support
Give us feedback
If you're pressed for time, but you want this feature to be available in all browsers, please give this issue a thumbs up 👍 reaction.
However, a much better guide for us is to know how you'd use this feature, and what you're having to do in the meantime. This helps us judge the priority versus other features.
Copy the template below in a comment, and add the details that matter to you.
All comments are expected to adhere to the Code of Conduct.
Learn more
You can learn more about this feature here: