wikimedia.mustache in onebox-1.9.27.2

- old
+ new

@@ -1,3 +1,3 @@
 {{#image}}<img src="{{image}}" class="thumbnail"/>{{/image}}
 
-<h3><a href='{{link}}' target='_blank'>{{title}}</a></h3>
+<h3><a href='{{link}}' target='_blank' rel='noopener'>{{title}}</a></h3>