diff --git a/templates/img-viewer/app.tmpl b/templates/img-viewer/app.tmpl
index 633cf80..3891f18 100644
--- a/templates/img-viewer/app.tmpl
+++ b/templates/img-viewer/app.tmpl
@@ -1,5 +1,5 @@
 {{ define "img-viewer/app.tmpl" }}
-    <div id="TestWindowHeader" class="WindowFrameTopBar DragArea">
+    <div id="TestWindowHeader" class="WindowFrameTopBar D">
         <button id="closeWindowButton" class="WindowFrameTopBarButton" title="Close Window"></button>
         <div id="Drag" class="WindowDragArea"></div>
         <div class="WindowFrameTitle">
@@ -12,7 +12,7 @@
             Toolbar
         </div> -->
         <div class="Img-Viewer-Picture-Container">
-            <img src="data:image/jpeg;base64,{{.base64}}">
+            <img src="data:{{.header}},{{.base64}}">
         </div>
     </div>
 {{ end }}