---
title: JavaScript SDK 3.43.0
summary: null
url: >-
  https://www.fastly.com/documentation/reference/changes/2026/06/javascript-sdk-3.43.0
---

## Added

- stale-if-error support ([#1307](https://github.com/fastly/js-compute-runtime/issues/1307)) ([3e06237](https://github.com/fastly/js-compute-runtime/commit/3e06237878338394451f808e5cb7cd52b993d61e))

## Fixed

- Make boundary parameter of multi-part form data requests safe for use in `Content-Type` headers ([#1493](https://github.com/fastly/js-compute-runtime/issues/1493)) ([938f15f](https://github.com/fastly/js-compute-runtime/commit/938f15fc36faaf6ed188897cde533691475a0779))
- Remove memory leak of cache write options in error cases ([#1483](https://github.com/fastly/js-compute-runtime/issues/1483)) ([79874b6](https://github.com/fastly/js-compute-runtime/commit/79874b6e501be0fa3a3f4557a442659357968d83))