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LNA permission for a private-IP target is applied only intermittently in Firefox 159

Firefox Bezpieczeństwo przeglądarki
serenayangy
serenayangy

I'm hitting an intermittent failure that I believe is related to Local Network Access (LNA) enforcement, and I'd like help confirming whether this is expected behavior or a bug worth filing.

Environment

Firefox 159 (problem does not occur on earlier versions I tested)

Page origin: public hostname

The target hostname resolves to 100.93.28.9 in my environment (corporate VPN / internal DNS). That address is in 100.64.0.0/10 (CGNAT), so Firefox classifies it as a local/private network target.

Symptom

Firefox shows the "local network access" permission prompt for this site.

I have granted permission, including checking "don't ask again for this site."

Despite the saved permission, requests succeed sometimes and fail sometimes.

When they fail, the console shows a mix of NS_ERROR_NET_UNCLEAN_SHUTDOWN, NS_ERROR_NET_RESET, and occasionally NS_ERROR_NET_PARTIAL_TRANSFER.

I'm hitting an intermittent failure that I believe is related to Local Network Access (LNA) enforcement, and I'd like help confirming whether this is expected behavior or a bug worth filing. Environment Firefox 159 (problem does not occur on earlier versions I tested) Page origin: public hostname The target hostname resolves to 100.93.28.9 in my environment (corporate VPN / internal DNS). That address is in 100.64.0.0/10 (CGNAT), so Firefox classifies it as a local/private network target. Symptom Firefox shows the "local network access" permission prompt for this site. I have granted permission, including checking "don't ask again for this site." Despite the saved permission, requests succeed sometimes and fail sometimes. When they fail, the console shows a mix of NS_ERROR_NET_UNCLEAN_SHUTDOWN, NS_ERROR_NET_RESET, and occasionally NS_ERROR_NET_PARTIAL_TRANSFER.

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