Do not set Connection: keep-alive unless -enable_keep_alive is set

cesanta/mongoose@8601b03

Author: Vasyl Vavrychuk

src/third_party/mongoose/mongoose.c

@@ -786,8 +786,9 @@ static int match_extension(const char *path, const char *ext_list) {
 static int should_keep_alive(const struct mg_connection *conn) {
   const char *http_version = conn->request_info.http_version;
   const char *header = mg_get_header(conn, "Connection");
-  return (header == NULL && http_version && !strcmp(http_version, "1.1")) ||
-      (header != NULL && !mg_strcasecmp(header, "keep-alive"));
+  return (!mg_strcasecmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes") &&
+          (header == NULL && http_version && !strcmp(http_version, "1.1"))) ||
+          (header != NULL && !mg_strcasecmp(header, "keep-alive"));
 }
 
 static const char *suggest_connection_header(const struct mg_connection *conn) {