mirror of
https://gitlab.com/ClearURLs/ClearUrls.git
synced 2026-09-30 11:15:49 +02:00
Brian Helba
783f1fc99a
This change more directly addresses the privacy concern where servers can identify whether a given client has previously downloaded some content. This tracking occurs when a request for an already-cached resource is sent to the server with an `If-None-Match` header. If the cached resource was previously received with a unique `ETag`, the server can uniquely identify the user. Rather than blocking the client from reading `ETag` values (which may be safely be used for other purposes; see #177), this change prevents servers from being informed about whether the client has any cached content. Fixes #177.