Beforeinstallprompt event?

Samsung Internet
1 
window.addEventListener('beforeinstallprompt', (e) => {
    console.log('addToHomeScreen beforeinstallprompt');
    e.preventDefault(); 
    deferredPrompt = e; 
	console.log('deferredPrompt set:', deferredPrompt);
    addBtn.style.display = 'block'; 
   // addSamsungBtn.style.display = 'block';
});

Why doesn’t beforeinstallprompt work in Samsung browser?
It works in Google Chrome.

2

Hello,

Thank you for posting on the Samsung Developers Forums.

According to the Samsung internet team, the issue with beforeinstallprompt has been solved. You can try testing it using this website: https://mlearn-pwa-web-app-install-prompt.glitch.me/. If the issue persists on your website, please give me a website link where we can replicate the issue. I will forward it to the development team.

Sincerely,
Samiul Hossain
Samsung Developer Forums

3

hi, i’m pwa develop, i;m run pwa in android samsung internet browser of version 27.x, and found the same problem, not fired “beforeinstallprompt”, and the https://mlearn-pwa-web-app-install-prompt.glitch.me/ not running.

微信图片_20250306163222
微信图片_202503061632221080×2027 98 KB

微信图片_20250306163216
微信图片_202503061632161080×1485 94.7 KB

second image is my code, and i’m try print

window.addEventListener('beforeinstallprompt', (e) => {
        console.log(' window.addEventListener beforeinstallprompt success');
        localStorage.setItem('installFinish', "0")
        setShowInstall(true);
        e.preventDefault();
        e.stopPropagation();
        e.stopImmediatePropagation();
        window.deferredPrompt = e;
      });
console.log('window-----------', window, window.deferredPrompt)

get window.deferredPrompt result is undefined