From 1e9abfedfa7a858d89233088c503ebec4762b9fa Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sat, 8 Dec 2018 17:29:55 +0100
Subject: cookies: expire "Max-Age=0" immediately

Reported-by: Jeroen Ooms
Fixes #3351
Closes #3352
---
 lib/cookie.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/cookie.c b/lib/cookie.c
index d8655f790..3dc85ee5c 100644
--- a/lib/cookie.c
+++ b/lib/cookie.c
@@ -675,7 +675,10 @@ Curl_cookie_add(struct Curl_easy *data,
         /* overflow, used max value */
         co->expires = CURL_OFF_T_MAX;
       else if(!offt) {
-        if(CURL_OFF_T_MAX - now < co->expires)
+        if(!co->expires)
+          /* already expired */
+          co->expires = 1;
+        else if(CURL_OFF_T_MAX - now < co->expires)
           /* would overflow */
           co->expires = CURL_OFF_T_MAX;
         else
-- 
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