From a46f7b309955179139a5eaa29733fa1104d82d7a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20Mart=C3=ADn?= <oleurud@gmail.com>
Date: Mon, 18 Dec 2017 12:34:56 +0100
Subject: [PATCH] nested options and using it

---
 lib/cartodb/middleware/error-middleware.js | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/lib/cartodb/middleware/error-middleware.js b/lib/cartodb/middleware/error-middleware.js
index 6e45f1da..9246ca7f 100644
--- a/lib/cartodb/middleware/error-middleware.js
+++ b/lib/cartodb/middleware/error-middleware.js
@@ -187,7 +187,7 @@ function setErrorHeader(errors, statusCode, res) {
         };
     });
     
-    res.set('X-Tiler-Errors', JSON.stringify(errorsLog));
+    res.set('X-Tiler-Errors', stringifyForLogs(errorsLog));
 }
 
 /**
@@ -198,13 +198,16 @@ function setErrorHeader(errors, statusCode, res) {
  */
 function stringifyForLogs(object) {
     Object.keys(object).map(key => {
-        const value = object[key];
-        if (object instanceof Object) {
-            stringifyForLogs(value);
-        } else {
+        if (typeof object[key] === 'object') {
+            stringifyForLogs(object[key]);
+        } else if (object[key] instanceof Array) {
+            for (let element of object[key]) {
+                stringifyForLogs(element);
+            }
+        } else if(typeof object[key] === 'string') {
             object[key] = object[key].replace(/[^a-zA-Z0-9]/g, ' ');
         }
     });
 
     return JSON.stringify(object);
-}   
\ No newline at end of file
+}
\ No newline at end of file