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README: document the Android 16+ local-network permission; drop the retired 8080 server

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Chrome on Android 16/17 refuses to reach LAN addresses without the local
network permission, surfacing as ERR_LOCAL_NETWORK_PERMISSION_MISSING (or a
generic 'site can't be reached'), which looks like a dead server. Also removes
the now-stale 'python3 -m http.server 8080' instructions, since that server is
no longer running and its URL returns connection refused.
This commit is contained in:
AndPictures
2026-10-14 11:34:25 -07:00
parent 2e7bf11055
commit 87fc4d302e
1 changed files with 10 additions and 7 deletions
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README.md
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@@ -145,15 +145,18 @@ Open that link in any phone's browser on the same LAN and install it, or scan
`docs/download-qr.png`. The source lives at `docs/download-qr.png`. The source lives at
http://192.168.123.18:3001/umbragit/AndPictures http://192.168.123.18:3001/umbragit/AndPictures
### Serving the APK over the LAN **If the browser says the site can't be reached** (Chrome's
`ERR_LOCAL_NETWORK_PERMISSION_MISSING`): Android 16 and newer block apps from
reaching LAN addresses unless the app holds the *local network* / "Nearby devices"
permission. Tap **Allow** when the browser asks to "find, connect to, and determine
the relative position of nearby devices" (if it was denied earlier, re-enable it
under *Settings -> Apps -> Chrome -> Permissions -> Nearby devices*), then open the
link again. Chrome also warns "File might be harmful" for a direct APK download -
choose **Download anyway**.
```bash ### Installing
cd app/build/outputs/apk/release
python3 -m http.server 8080
# on the phone's browser: http://<this-machine-ip>:8080/app-release.apk
```
Download it in the phone's browser, open it, and allow installs for the browser. Download the APK in the phone's browser, open it, and allow installs for the browser.
Note: switching a device from the **debug** build to the **release** build requires Note: switching a device from the **debug** build to the **release** build requires
uninstalling the debug app first (they are signed with different keys), which also uninstalling the debug app first (they are signed with different keys), which also