The Amazon SDK for JavaScript v2 has reached end-of-support. We recommend that you migrate to [Amazon SDK for JavaScript v3](https://docs.amazonaws.cn//sdk-for-javascript/v3/developer-guide/). For additional details and information on how to migrate, please refer to this [announcement](https://amazonaws-china.com/blogs//developer/announcing-end-of-support-for-aws-sdk-for-javascript-v2/).

# Browser Script Considerations
<a name="browser-js-considerations"></a>

The following topics describe special considerations for using the Amazon SDK for JavaScript in browser scripts.

**Topics**
+ [Building the SDK for Browsers](building-sdk-for-browsers.md)
+ [Cross-Origin Resource Sharing (CORS)](cors.md)