From 46fdcf8c53df405e014bb15da3943edef9c41798 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kornel=20Lesin=CC=81ski?= <kornel@geekhood.net>
Date: Fri, 9 Dec 2016 16:38:16 +0000
Subject: [PATCH] Delete 1xx warnings

---
 index.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/index.js b/index.js
index 128fe8d..54e9099 100644
--- a/index.js
+++ b/index.js
@@ -184,6 +184,16 @@ module.exports = class CachePolicy {
                 delete headers[name];
             }
         }
+        if (headers.warning) {
+            const warnings = headers.warning.split(/,/).filter(warning => {
+                return !/^\s*1[0-9][0-9]/.test(warning);
+            });
+            if (!warnings.length) {
+                delete headers.warning;
+            } else {
+                headers.warning = warnings.join(',').trim();
+            }
+        }
         headers.age = `${Math.round(this.age())}`;
         return headers;
     }