Set chunks_transferred to 0

src/worker/request_handler.c

@@ -48,6 +48,7 @@ static void init_ctx(client_ctx_t *ctx) {
     ctx->file = NULL;
     ctx->proxy = NULL;
     ctx->use_fastcgi = 0;
+    ctx->chunks_transferred = 0;
     ctx->use_proxy = 0;
     ctx->ws_close = 0;
     ctx->proxy = NULL;