Fix Issue #2800 - Prevent internal link from switching to Safari in standalone mode

- Add link switch prevention to frio theme
- Add reference to the script page

view/templates/head.tpl

@@ -20,11 +20,10 @@
 
 <meta name="apple-mobile-web-app-capable" content="yes" />
 <script>
-// Prevents links to switch to Safari in a home screen app
+// Prevents links to switch to Safari in a home screen app - see https://gist.github.com/irae/1042167
 (function(a,b,c){if(c in b&&b[c]){var d,e=a.location,f=/^(a|html)$/i;a.addEventListener("click",function(a){d=a.target;while(!f.test(d.nodeName))d=d.parentNode;"href"in d&&(chref=d.href).replace(e.href,"").indexOf("#")&&(!/^[a-z\+\.\-]+:/i.test(chref)||chref.indexOf(e.protocol+"//"+e.host)===0)&&(a.preventDefault(),e.href=d.href)},!1)}})(document,window.navigator,"standalone");
 </script>
 
-
 <link rel="search"
          href="{{$baseurl}}/opensearch"
          type="application/opensearchdescription+xml"

view/theme/frio/templates/head.tpl

@@ -39,11 +39,15 @@
 <link rel="shortcut icon" href="{{$shortcut_icon}}" />
 <link rel="apple-touch-icon" href="{{$touch_icon}}"/>
 
-<meta name="apple-mobile-web-app-capable" content="yes" /> 
+<meta name="apple-mobile-web-app-capable" content="yes" />
+<script>
+// Prevents links to switch to Safari in a home screen app - see https://gist.github.com/irae/1042167
+(function(a,b,c){if(c in b&&b[c]){var d,e=a.location,f=/^(a|html)$/i;a.addEventListener("click",function(a){d=a.target;while(!f.test(d.nodeName))d=d.parentNode;"href"in d&&(chref=d.href).replace(e.href,"").indexOf("#")&&(!/^[a-z\+\.\-]+:/i.test(chref)||chref.indexOf(e.protocol+"//"+e.host)===0)&&(a.preventDefault(),e.href=d.href)},!1)}})(document,window.navigator,"standalone");
+</script>
 
 <link rel="search"
-         href="{{$baseurl}}/opensearch" 
+         href="{{$baseurl}}/opensearch"
-         type="application/opensearchdescription+xml" 
+         type="application/opensearchdescription+xml"
          title="Search in Friendica" />