This checks the things Android Chrome needs before it will show Install app instead of Create shortcut.
Ready. Tap Run Install Check.
After opening this page in Chrome, tap once and stay here for at least 30 seconds. Then run the check again and open Chrome’s menu.
What the result means:
If everything says OK but Chrome still says Create shortcut, Chrome is refusing to show the real install prompt on that device/browser session.
If root icons or Service Worker fail, screenshot this page so we know exactly what the live server is blocking.