我已经搜索了这个，但我没有工作。
我想要的是当用户尝试在我的页面上“安装到主屏幕”时，在移动设备上，它会安装一个带有 MY ICON 的快捷方式。但是这个图标没有出现。
我把它放在我的 Login / Default.ctp ：
上 <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<link rel="apple-touch-icon-precomposed" href="http://www.iconj.com/ico/t/3/t3c14scn7l.ico"/>
<link rel="apple-touch-icon" sizes="57x57" href="http://localhost/SysApp/apple-touch-icon-57x57.png">
<link rel="apple-touch-icon" sizes="60x60" href="http://localhost/SysApp/apple-touch-icon-60x60.png">
<link rel="apple-touch-icon" sizes="72x72" href="http://localhost/SysApp/apple-touch-icon-72x72.png">
<link rel="apple-touch-icon" sizes="76x76" href="http://localhost/SysApp/apple-touch-icon-76x76.png">
<link rel="apple-touch-icon" sizes="114x114" href="http://localhost/SysApp/apple-touch-icon-114x114.png">
<link rel="apple-touch-icon" sizes="120x120" href="http://localhost/SysApp/apple-touch-icon-120x120.png">
<link rel="apple-touch-icon" sizes="144x144" href="http://localhost/SysApp/apple-touch-icon-144x144.png">
<link rel="apple-touch-icon" sizes="152x152" href="http://localhost/SysApp/apple-touch-icon-152x152.png">
<link rel="apple-touch-icon" sizes="180x180" href="http://localhost/SysApp/apple-touch-icon-180x180.png">
<link rel="icon" type="image/png" href="http://localhost/SysApp/favicon-32x32.png" sizes="32x32">
<link rel="icon" type="image/png" href="http://localhost/SysApp/android-chrome-192x192.png" sizes="192x192">
<link rel="icon" type="image/png" href="http://localhost/SysApp/favicon-96x96.png" sizes="96x96">
<link rel="icon" type="image/png" href="http://localhost/SysApp/favicon-16x16.png" sizes="16x16">
<link rel="manifest" href="http://localhost/SysApp/manifest.json">
<link rel="shortcut icon" href="http://www.iconj.com/ico/t/3/t3c14scn7l.ico" type="image/x-icon" />
<link rel="shortcut icon" href="/favicon.ico"/>
<link rel="shortcut icon" href="http://localhost/SysApp/android-chrome-192x192.png" sizes="192x192" />
<link rel="shortcut icon" href="http://www.iconj.com/ico/n/1/n1f2a7gyhf.ico" type="image/x-icon" />
<link rel="icon" href="http://localhost/SysApp/android-chrome-192x192.png" sizes="192x192" />
<meta name="msapplication-TileColor" content="#2b5797">
<meta name="msapplication-TileImage" content="http://localhost/SysApp/mstile-144x144.png">
<meta name="theme-color" content="#ffffff">
<meta content="icon-uri=http://www.iconj.com/ico/t/3/t3c14scn7l.ico; window=self" name="msapplication-task">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="mobile-web-app-capable" content="yes">
<link rel="apple-touch-startup-image" href="http://localhost/SysApp/android-chrome-192x192.png">
当我在Chrome for Android上尝试“安装到主屏幕”时，它无效（图标不显示），快捷方式在我的主屏幕上，但没有图标。
请帮忙。