With a particular app we deployed by TestFlight, some users are experiencing an issue where the app simply cannot make web requests when connected via cellular data. Other apps on the devices in question work fine over cellular data, just not ours. When the user switches to WiFi, our app is able to make web requests. This behavior has been observed on both iPhone 8 and iPhone X. Deleting and reinstalling the app and restarting the device does not resolve the issue. In one of the iPhone 8 cases, updating iOS to the latest version did resolve the issue. We confirmed in all cases that cellular data was enabled for the app in Settings > Cellular > [App name] and in Settings > [App name] > Use Cellular Data.
The app is built with React Native and web requests are performed with the cross-fetch library.
Has anyone else experienced this behavior for cell before?
from iOS app -- no cellular data access on some devices
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