10 seconds timeout (Connection reset) instead of 403

[magopian]

If you start uploading a big file that will take more than 10 seconds to upload, and you don't have the permission to do so, the connection will be reset after 10 seconds, and you will have no idea why.

If the file can be uploaded in less than 10 seconds, you'll have a proper 403.

This wasn't easy to understand because I didn't see anything in the logs, and 10 seconds didn't seem to relate to anything in the settings. It's only when I tried uploading a small file that I got the permission error, and then understood that it might cause the issue.

I guess the proper fix here would be to have a 403 straight away (and not once the file is uploaded... or 10 seconds have elapsed).