diff --git a/dev/demo/build.html b/dev/demo/build.html
index 9e577de..e68cfd8 100644
--- a/dev/demo/build.html
+++ b/dev/demo/build.html
@@ -96,7 +96,7 @@
 	    <!--
 	    <ul class="action right">
 	      <li class="close" title="Close"><a href="#">Close hit<i class="fa fa-toggle-up"></i></a></li>
-	      <li class="open" title="Open in new tab"><a href="#WPD-WWW.03313-p102-103" target="_blank"><i class="fa fa-external-link-square"></i></a></li>
+	      <li class="open" title="Open in new tab"><a href="#WPD-WWW.03313-p102-103" target="_blank" rel="noopener noreferrer"><i class="fa fa-external-link-square"></i></a></li>
 	      <li onclick="showTable(this)" title="Annotations"><i class="fa fa-info-circle"></i></li>
 	    </ul>
 -->
@@ -114,7 +114,7 @@
 	    <p class="ref"><strong>Fehlbezogenes Adjektiv</strong> by Joni2,Peterlustig,BWBot; published on 2005-03-28 as FFF.01460 (WPD)</p>
 	    <ul class="action right">
 	      <li class="close" title="Close"><a href="#"><i class="fa fa-toggle-up"></i></a></li>
-	      <li class="open" title="Open in new tab"><a href="#WPD-FFF.01460-p119-120" target="_blank"><i class="fa fa-external-link-square"></i></a></li>
+	      <li class="open" title="Open in new tab"><a href="#WPD-FFF.01460-p119-120" target="_blank" rel="noopener noreferrer"><i class="fa fa-external-link-square"></i></a></li>
 	      <li onclick="showTable(this)" title="Annotations"><i class="fa fa-info-circle"></i></li>
 	    </ul>
 	  </li>
@@ -132,7 +132,7 @@
 	    <p class="ref"><strong>High Definition Television</strong> by ArtMechanic,TheK,Andreas -horn- Hornig; published on 2005-03-28 as HHH.06056 (WPD)</p>
 	    <ul class="action right">
 	      <li class="close" title="Close"><a href="#"><i class="fa fa-toggle-up"></i></a></li>
-	      <li class="open" title="Open in new tab"><a href="#WPD-HHH.06056-p2564-2565" target="_blank"><i class="fa fa-external-link-square"></i></a></li>
+	      <li class="open" title="Open in new tab"><a href="#WPD-HHH.06056-p2564-2565" target="_blank" rel="noopener noreferrer"><i class="fa fa-external-link-square"></i></a></li>
 	      <li onclick="showTable(this)" title="Annotations"><i class="fa fa-info-circle"></i></li>
 	    </ul>
 	  </li>