Same domain doesn't always mean your information won't get leaked to wherever. For example, Sentry supports sending data through a proxy hosted on the same doma

Same domain doesn't always mean your information won't get leaked to wherever. For example, Sentry supports sending data through a proxy hosted on the same domain used by the website. If you don't block it, your data ends up on sentry.io anyway (in most cases; some users probably self-host their own Sentry instance, but how many? It's quite painful from my personal experience.) https://docs.sentry.io/platforms/javascript/troubleshooting/#dealing-with-ad-blockers https://docs.sentry.io/platforms/javascript/troubleshooting/...