Hi, one of the authors here. 100 Continue wasn&#x27;t discarded that quickly and is part of the protocol. More info here: <a href="https:&#x2F;&#x2F;github.com&#x2F;tus&#x2F;tus-resumable-upload-protocol&#x2F;issues&#x2F;9" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;tus&#x2F;tus-resumable-upload-protocol&#x2F;issues&#x2F;...</a>