githubgist.mustache in onebox-1.9.27.2

- old
+ new

@@ -1,12 +1,12 @@
-<h4><a href="{{link}}" target="_blank">{{link}}</a></h4>
+<h4><a href="{{link}}" target="_blank" rel="noopener">{{link}}</a></h4>
 {{#gist_files}}
 <h5>{{filename}}</h5>
 <pre><code class='{{language}}'>{{content}}</code></pre>
-{{#truncated?}}This file has been truncated. <a href="{{link}}" target="_blank">show original</a>{{/truncated?}}
+{{#truncated?}}This file has been truncated. <a href="{{link}}" target="_blank" rel="noopener">show original</a>{{/truncated?}}
 {{/gist_files}}
 
 <p>
 {{#truncated_files?}}
-  There are more than three files. <a href="{{link}}" target="_blank">show original</a>
+  There are more than three files. <a href="{{link}}" target="_blank" rel="noopener">show original</a>
 {{/truncated_files?}}
 </p>