<link rel="shortcut icon" href="<%= asset_path 'favicon.ico' %>" type="image/x-icon" />

<!-- For third-generation iPad with high-resolution Retina display: -->
<link rel="apple-touch-icon-precomposed" sizes="144x144" href="<%= asset_path "apple-touch-icon-144x144.png" %>">
<!-- For iPhone with high-resolution Retina display: -->
<link rel="apple-touch-icon-precomposed" sizes="114x114" href="<%= asset_path "apple-touch-icon-114x114.png" %>">
<!-- For first- and second-generation iPad: -->
<link rel="apple-touch-icon-precomposed" sizes="72x72" href="<%= asset_path "apple-touch-icon-72x72.png" %>">
<!-- For non-Retina iPhone, iPod Touch, and Android 2.1+ devices: -->
<link rel="apple-touch-icon-precomposed" href="<%= asset_path "apple-touch-icon-57x57.png" %>">

<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="og:image" content="<%= asset_path "opengraph-image.png" %>">

<link rel="shortcut icon" href="<%= asset_path 'favicon.ico' %>" type="image/x-icon" />

<!-- For third-generation iPad with high-resolution Retina display: -->
<link rel="apple-touch-icon-precomposed" sizes="144x144" href="<%= asset_path "apple-touch-icon-144x144.png" %>">
<!-- For iPhone with high-resolution Retina display: -->
<link rel="apple-touch-icon-precomposed" sizes="114x114" href="<%= asset_path "apple-touch-icon-114x114.png" %>">
<!-- For first- and second-generation iPad: -->
<link rel="apple-touch-icon-precomposed" sizes="72x72" href="<%= asset_path "apple-touch-icon-72x72.png" %>">
<!-- For non-Retina iPhone, iPod Touch, and Android 2.1+ devices: -->
<link rel="apple-touch-icon-precomposed" href="<%= asset_path "apple-touch-icon-57x57.png" %>">

<meta name="viewport" content="width=device-width, initial-scale=1">
<meta property="og:image" content="<%= asset_path "opengraph-image.png" %>">

Use property as attribute not name for og tags
Use property as attribute not name for og tags

The [open graph protocol][1] says the meta tags should use the property
attribute to define the property it is defining.

[1]: http://ogp.me/
