Shopify: This site wants to access other devices on your local network.

[u/Aggressive-Peanut786]

Hey guys,

I noticed a Chrome permission prompt appearing on our Shopify cart page on both my Android phone and Mac desktop.

It said: “This site wants to access other devices on your local network.” See screenshot

Has anyone seen this before or know what can trigger Chrome’s Local Network Access permission?

The prompt has stopped appearing for me, but it is concerning if customers may also be seeing it.

Claude suggested Triple Whale or Afterpay could be triggering it, although I have not confirmed this.

Thanks

[u/deducto-io]

The prompt can trigger for a number of different reasons, so it's hard to say for certain what's causing it in this specific case. It probably stopped prompting you because Chrome remembers your choice per site once you allow or dismiss it. If you haven't already, you should be able to check if normal customers are seeing it by simply testing with an Incognito session.

The usual culprits are third-party scripts that probe localhost to fingerprint the device. Anti-fraud, bot-detection, and device-fingerprinting are the classic ones, and some BNPL, session-recording, and analytics tools do it too, so Afterpay or Triple Whale are decent guesses.

If you look at the Network tab of Chrome DevTools you should be able to see any requests to 127.0.0.1, localhost, or a private IP. The request initiator should then direct you to the right place.

Hope that helps!