From 6c5052ed8483860fa50aa408095e4f6f253a8a3f Mon Sep 17 00:00:00 2001
From: Sebastian Serth <Sebastian.Serth@hpi.de>
Date: Tue, 24 Nov 2020 00:22:56 +0100
Subject: [PATCH] Prevent printing empty lines in output

---
 app/assets/javascripts/editor/evaluation.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/assets/javascripts/editor/evaluation.js b/app/assets/javascripts/editor/evaluation.js
index cc09a16f..af06c4c2 100644
--- a/app/assets/javascripts/editor/evaluation.js
+++ b/app/assets/javascripts/editor/evaluation.js
@@ -154,7 +154,7 @@ CodeOceanEditorEvaluation = {
     },
 
     printWebsocketOutput: function (msg) {
-        if (!msg.data) {
+        if (!msg.data || msg.data === "\r") {
             return;
         }
         msg.data = msg.data.replace(/(\r)/gm, "\n");