Is It Possible To Force Iphone/ipod To Update Apple-touch-icon Once Webapp Is Added To Home Screen
Jan 3, 2011
I have created a webapp using all of the recommended link and meta tags for safari, eg.
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<link rel="apple-touch-startup-image" href="/startup.png" />
<link rel="apple-touch-icon" href="/apple-touch-icon.png" />
<link rel="apple-touch-icon" sizes="72x72" href="/apple-touch-icon-ipad.png" />
<link rel="apple-touch-icon" sizes="114x114" href="/apple-touch-icon-iphone4.png" />
However, my issue is if the startup.png or any of the apple-touch-icon image files are updated on the webserver, it doesn't seem like a user's iphone or ipod will retreive the updated file once it has been saved to their home screen (I'm guessing it's cached somehow or something). It works to remove the webapp from the home screen and re-add it. But is there a way to let the application know it needs to refresh these images without requiring the user to delete and re-add it?
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