TWA - Digital Asset Link OK but address bar still visible

Question

I developed a Progressive Web App and I want to publish it in the Play Store as a Trusted Web Activity. It's https://www.bagnoadriatico.it

Following this guide https://developers.google.com/web/updates/2019/02/using-twa

I downloaded the example from https://github.com/GoogleChromeLabs/svgomg-twa

I changed the configuration with

def twaManifest = [
    applicationId: 'com.simovinci.bagnoadriatico',
    hostName: 'www.bagnoadriatico.it', // The domain being opened in the TWA.
    launchUrl: '/mobile', // The start path for the TWA. Must be relative to the domain.
    name: 'BagnoAdriatico di Casalborsetti', // The name shown on the Android Launcher.
    themeColor: '#ff5c14', // The color used for the status bar.
    backgroundColor: '#ffff00' // The color used for the splash screen background.
]

then I signed the apk, build and published on play store.

In the website I created the association by Digital Asset Link https://www.bagnoadriatico.it/.well-known/assetlinks.json The "Statement List Generator and Tester" say that the operation was successful "Success! Host www.bagnoadriatico.it grants app deep linking to com.simovinci.bagnoadriatico." https://developers.google.com/digital-asset-links/tools/generator

The Address bar still visible, I don't know why.

https://www.bagnoadriatico.it/mobile returns a 200 http code. The PWA is 100% Lighthouse validated. The key finger print is right

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I tried to set launchUrl = "/" (before I removed the 302 to mobile version) but nothing changed. The address bar is still visible.

Answer 1

If you have used app signing by Google Play, your SHA 256 changes. The fix is to download your app from the Play Store and then generate a new assetlinks.json file by using the following tool also from the Play Store:

https://play.google.com/store/apps/details?id=dev.conn.assetlinkstool&hl=en