Posthog cookies showing up on fly hosted site

I’ve been noticing that I keep getting a posthog.com cookie showing up on a website that I host on fly.io that I access frequently. Besides some random embedded image and video content, the site only talks to itself. Does fly.io inject some kind of cookie into websites hosted on it? I doubt it, but I can’t find the source of this cookie. My other idea was that maybe some extension is causing it to be set? But the only extension I really run is wipr and 1Password.

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Yikes. Think Fly uses posthog for its own purposes, but if its scripts were injected in to your website (if you’re using Fly-terminated http/tls), then that sounds like a bug.

What’s the website, if it is open to public?

No, we do not.

  • Daniel
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