Changed addCookie method not to return a Max-Age or Expires property if the maxAge is < 0. This is tested with a browser and should finally close #51

Author: sapessi

aws-serverless-java-container-core/src/main/java/com/amazonaws/serverless/proxy/internal/servlet/AwsHttpServletResponse.java

@@ -96,9 +96,10 @@ public void addCookie(Cookie cookie) {
         if (cookie.getDomain() != null && !"".equals(cookie.getDomain().trim())) {
             cookieData += "; Domain=" + cookie.getDomain();
         }
-        cookieData += "; Max-Age=" + cookie.getMaxAge();
 
         if (cookie.getMaxAge() > 0) {
+            cookieData += "; Max-Age=" + cookie.getMaxAge();
+
             // we always set the timezone to GMT
             TimeZone gmtTimeZone = TimeZone.getTimeZone(COOKIE_DEFAULT_TIME_ZONE);
             Calendar currentTimestamp = Calendar.getInstance(gmtTimeZone);