4 ms·
> This isn’t theory, I’ve tested it and it works. That only works when the destination URL of the ping is specified as a content blocker rule. Content blockers
by bangonkeyboard 8y ago
> This isn’t theory, I’ve tested it and it works.
That only works when the destination URL of the ping is specified as a content blocker rule. Content blockers are too limited to block the ping mechanism itself, so you would need to statically add every single arbitrary tracker URL pattern to the ruleset and hope they don't match a site or resource you want.
- stephenr 8y agoThat is literally my point. You don’t need to “block” the ping functionality (which itself would be come a fingerprinting data point) any more than you need to block xhr/fetch or following 301 redirects (which are also used for the same purposes the ping attribute may be used for) There are literally dozens of content blockers available for both macOS and iOS and all have extensive block lists of trackers, ad networks, etc. Some also allow you to add custom rules. That same content blocker will also block XHR/fetch based link tracking that many will just fallback to if ping support is not detected.