{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com/data/attach/logo/logo.png', '推荐 劳资没心，怎么记你 的问题《progressive web app site cannot be installed: no i》','https://www.manongdao.com/q-662631.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
I'm building a progressive web app. I started off with boilerplate from create-react-app. Then I added a web app manifest.
app/public/manifest.json
{
"short_name": "First Contributions",
"name": "First Contributions",
"icons": [
{
"src": "/android-chrome-192x192.png",
"sizes": "192x192",
"type": "image/png"
},
{
"src": "/android-chrome-256x256.png",
"sizes": "256x256",
"type": "image/png"
}
],
"theme_color": "#ffffff",
"background_color": "#ffffff",
"display": "standalone",
"start_url": "index.html"
}
Linked this to index.html
app/public/index.html
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
<link rel="manifest" href="%PUBLIC_URL%/manifest.json">
<title>First Contributions</title>
</head>
<body>
<div id="root"></div>
<script>
if ('serviceWorker' in navigator) {
navigator.serviceWorker.register('service-worker.js').catch(function(ex) {
console.warn(ex);
console.warn('(This warning can be safely ignored outside of the production build.)');
});
}
</script>
</body>
</html>
I've generated icons using realfavicongenerator.net and put them in public directory.
I'm deploying my app using gh-pages. When I try to Add to homescreen, I get the following errors
- android-chrome-192x192.png:1 GET https://roshanjossey.github.io/android-chrome-192x192.png 404 (Not Found)
- Error while trying to use the following icon from the Manifest: https://roshanjossey.github.io/android-chrome-192x192.png (Download error or resource isn't a valid image)
- Site cannot be installed: no icon available to display
I think I'm doing something wrong in webmanifest for icons.
Your icon paths reference to root directory.
Change
"src": "/android-chrome-192x192.png",to"src": "android-chrome-192x192.png",(without/at the beginning).