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Sometimes, a user is missing information about them such as their device type, device OS, and none of their events are showing up on the user look-up page. We believe this user is using a desktop browser.

Could it be that they have a Chrome extension that’s blocking our ability to track them? Or maybe even a VPN?

Hello @Allen121 !

Sometimes the endpoint for the JavaScript SDK is blocked when a user is using Firefox in ‘strict mode’. This would explain the events not showing up in your Amplitude project.


Hello @Allen121 !

Sometimes the endpoint for the JavaScript SDK is blocked when a user is using Firefox in ‘strict mode’. This would explain the events not showing up in your Amplitude project.

Is that the only cause? Could a Chrome extension (e.g. AdBlock) or VPN setting also be a factor?


Hi @Allen121, I hope all is well. Somehow we missed your follow-up note. I’m looping in platform specialist @ning.chang, who can take a closer look. We appreciate your patience! :relaxed:


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