Display favicons for external links

assets/content.js

@@ -0,0 +1,12 @@
+(function () {
+    document.querySelectorAll('.content a[href^="http"]').forEach(function (a) {
+        var hostname = new URL(a.href).hostname;
+        var img = document.createElement('img');
+        img.src = 'https://icons.duckduckgo.com/ip3/' + hostname + '.ico';
+        img.width = 16;
+        img.height = 16;
+        img.style.verticalAlign = 'middle';
+        img.style.marginRight = '3px';
+        a.prepend(img);
+    });
+})();

assets/page.html

@@ -47,6 +47,7 @@
             <script src="/_/editor.js"></script>
             {{else}} {{if .Content}}
             <div class="content">{{.Content}}</div>
+            <script src="/_/content.js"></script>
             {{end}} {{if .Entries}}
             <div class="listing">
                 <div class="listing-header">Contents</div>