OK-501 IE11 compatibility tag in index.html added
diff --git a/src/index.html b/src/index.html
index eebb10d..9cbcb5a 100644
--- a/src/index.html
+++ b/src/index.html
@@ -2,7 +2,7 @@
 <html>
 
 <head>
-  
+  <meta http-equiv="X-UA-Compatible" content="IE=11" />
   <meta charset="utf-8">
   <title>openKONSEQUENZ</title>
   <base href="./">