diff --git a/api/src/index.js b/api/src/index.js
index fcbe547..a7c769f 100644
--- a/api/src/index.js
+++ b/api/src/index.js
@@ -95,13 +95,11 @@ async function launch(res, language, body) {
         result.output += chunk;
     });
 
-    result.stderr = result.stderr.substring(0, 65535);
-    result.stdout = result.stdout.substring(0, 65535);
-    result.output = result.output.substring(0, 65535);
+    result.stderr = result.stderr.trim().substring(0, 65535);
+    result.stdout = result.stdout.trim().substring(0, 65535);
+    result.output = result.output.trim().substring(0, 65535);
 
-    process.on('exit', () => {
-        res.json(result);
-    });
+    process.on('exit', () => res.json(result));
 }
 
 app.get('/versions', (req, res) => {