diff --git a/client/commonFramework/output-display.js b/client/commonFramework/output-display.js
index 87b1e41fa2..77bbf4c49c 100644
--- a/client/commonFramework/output-display.js
+++ b/client/commonFramework/output-display.js
@@ -38,13 +38,14 @@ window.common = (function(global) {
   codeOutput.setSize('100%', '100%');
 
   common.updateOutputDisplay = function updateOutputDisplay(str = '') {
-    str = JSON.stringify(str);
+    if (typeof str !== 'string') {
+      str = JSON.stringify(str);
+    }
     codeOutput.setValue(str);
     return str;
   };
 
   common.appendToOutputDisplay = function appendToOutputDisplay(str = '') {
-    str = JSON.stringify(str);
     codeOutput.setValue(codeOutput.getValue() + str);
     return str;
   };