Merge pull request #33312 from overleaf/copilot/send-clear-site-data-header

Send `Clear-Site-Data` header on account deletion

GitOrigin-RevId: c3f0b5f27cc80a1927518c56436c3a808b144fb7

services/web/app/src/Features/User/UserController.mjs

@@ -293,6 +293,9 @@ async function tryDeleteUser(req, res, next) {
   UserSessionsManager.promises.untrackSession(user, sessionId).catch(err => {
     logger.warn({ err, userId: user._id }, 'failed to untrack session')
   })
+  // Note that the "*" must be in double quotes
+  // https://www.w3.org/TR/clear-site-data/#ref-for-grammardef-
+  res.set('Clear-Site-Data', '"*"')
   res.sendStatus(200)
 }