putFile is not wornking since yesterday

Hi;

My upload to S3 code was working yesterday but now I am getting

```
Error: Request aborted
at IncomingMessage.onReqAborted (/node_modules/express/node_modules/connect/node_modules/multiparty/index.js:182:17)
at IncomingMessage.emit (events.js:92:17)
at abortIncoming (http.js:1911:11)
at Socket.serverSocketCloseListener (http.js:1923:5)
at Socket.emit (events.js:117:20)
at TCP.close (net.js:465:12)
```

What can be the problem?

Start with the putFile upload path and the reported stack trace in node_modules/express/node_modules/connect/node_modules/multiparty/index.js. Reproduce the S3 upload failure and trace the request-abort cause; done means a verified fix or a clear resolution for this error.

Written by the indexing model from the issue text.