head.html in jekyll-theme-prologue-0.2.4

- old
+ new
@@ -1,19 +1,48 @@
 <head>
-  <title>{{ site.title }} {{ site.subtitle }}</title>
+  {% if site.google_analytics and jekyll.environment == 'production' %}
+    {% include google_analytics.html %}
+  {% endif %}
+  
+  <!-- Robots -->
+  <meta name="robots" content="{{ page.robots | default: 'index, follow' }}" />
+  {% unless page.canonical == false %}<link rel="canonical" href="{{ page.url | absolute_url }}" />{% endunless %}
+  
+  <!-- Title, description, author -->
+  {% capture page_title %}
+    {% if page.title %}{{ page.title | append: ' | ' }}{% endif %}
+    {{ site.title }}
+    {% if site.subtitle %}{{ site.subtitle | prepend: ' - ' }}{% endif %}
+  {% endcapture %}
+  {% assign page_title = page_title | escape | normalize_whitespace %}
+  {% assign page_description = page.description | default: site.description | default: 'description missing' | escape %}
+
+  <title>{{ page_title }}</title>
+  <meta name="description" content="{{ page_description }}" />
+  <meta name="author" content="{{ site.author }}" />
+  
+  <!-- Open Graph -->
+  <meta property="og:title" content="{{ page_title }}" />
+  <meta property="og:type" content="website" />
+  <meta property="og:image" content="{{ 'assets/images/avatar.jpg' | absolute_url }}" />
+  <meta property="og:url" content="{{ page.url | absolute_url }}" />
+  <meta property="og:site_name" content="{{ site.title | escape }}" />
+  <meta property="og:description" content="{{ page_description }}" />
+  
+  <!-- Styles -->
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1" />
-  <!--[if lte IE 8]><script src="{{ 'assets/js/ie/html5shiv.js' | relative_url }}"></script><![endif]-->
+  <!--[if lte IE 8]><script src="{{ 'assets/js/ie/html5shiv.js' | relative_url }}" defer></script><![endif]-->
   <link rel="stylesheet" href="{{ 'assets/css/main.css' | relative_url }}" />
   <!--[if lte IE 8]><link rel="stylesheet" href="{{ 'assets/css/ie8.css' | relative_url }}" /><![endif]-->
   <!--[if lte IE 9]><link rel="stylesheet" href="{{ 'assets/css/ie9.css' | relative_url }}" /><![endif]-->
 
   <!-- Scripts -->
-  <script src="assets/js/jquery.min.js" defer></script>
+  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js" defer></script>
   <script src="assets/js/jquery.scrolly.min.js" defer></script>
   <script src="assets/js/jquery.scrollzer.min.js" defer></script>
   <script src="assets/js/skel.min.js" defer></script>
   <script src="assets/js/util.js" defer></script>
-  <!--[if lte IE 8]><script src="assets/js/ie/respond.min.js" defer></script><![endif]-->
+  <!--[if lte IE 8]><script src="{{ 'assets/js/ie/respond.min.js' | relative_url }}" defer></script><![endif]-->
   <script src="assets/js/main.js" defer></script>
 
 </head>
\ No newline at end of file