only consider 2xx cacheable

diff --git a/php_http_env_response.c b/php_http_env_response.c
index 67a6d5830e4bf4d07b63b7db7b5b1df4b108050c..be7effa3eaf1b4859d447fbc9821171180a09e15 100644 (file)
--- a/php_http_env_response.c
+++ b/php_http_env_response.c
@@ -229,8 +229,9 @@ php_http_cache_status_t php_http_env_is_response_cached_by_last_modified(zval *o
 static zend_bool php_http_env_response_is_cacheable(php_http_env_response_t *r, php_http_message_t *request)
 {
        TSRMLS_FETCH_FROM_CTX(r->ts);
+       long status = r->ops->get_status(r);
 
-       if (r->ops->get_status(r) >= 400) {
+       if (status && status / 100 != 2) {
                return 0;
        }