Fix the type of the content shown on the monitoring event routes
diff --git a/fey-core/src/main/scala/org/apache/iota/fey/FeyUIService.scala b/fey-core/src/main/scala/org/apache/iota/fey/FeyUIService.scala
index f08790a..6fa7a3c 100644
--- a/fey-core/src/main/scala/org/apache/iota/fey/FeyUIService.scala
+++ b/fey-core/src/main/scala/org/apache/iota/fey/FeyUIService.scala
@@ -61,7 +61,7 @@
       } catch {
         case e: Exception => ""
       }
-      Results.Ok(returnValue).as("application/json")
+      Results.Ok(returnValue).as("text/html")
     }
   }