diff --git a/demo/issue-77b/index.html b/demo/issue-77b/index.html
index 8264a34..864e5a1 100644
--- a/demo/issue-77b/index.html
+++ b/demo/issue-77b/index.html
@@ -28,7 +28,7 @@
     <p>window A</p>
     <p>
       <a href="#">
-        <svg>
+        <svg draggable="true">
           <rect width="300" height="200" style="cursor: pointer; fill: green" />
           <text x="50%" y="50%" dy=".3em" text-anchor="middle" fill="white" style="font: bold 20px sans-serif;">
             testing