Overrides the captive portal settings of Android devices (All version).

script.sh

# Aggregated from the internet.
# adb is required.
# You can replace the url with any valid one. This gist use miui.com's.
# You may need to reconnect the network to apply the change.

# Android 7.1.1-10.0
# Source: https://www.noisyfox.io/android-captive-portal.html
# Source: https://hky.moe/archives/162/
adb shell settings put global captive_portal_http_url http://connect.rom.miui.com/generate_204
adb shell settings put global captive_portal_https_url https://connect.rom.miui.com/generate_204

# Android 5.0-7.1.0
# Source: https://www.noisyfox.io/android-captive-portal.html
# Start from 7.0, the server must support HTTPS
adb shell settings put global captive_portal_server connect.rom.miui.com