File Uploads Remembered on page refresh on versions 1.10 - 1.13

[MichaelHoughton]

There is an issue with browser caching on version 1.10 - 1.13. This isn't an issue on version 1.9 or lower and on version 2.

The problem comes when a file is uploaded, and then the user moves to another page. So, for example, if a user uploads a file on an edit page, then publishes it, then moves to another page (say the Add Item page), the previously uploaded file is remembered and shows in the file uploader.

e.g. when coming to a new page, where the file uploader should be empty, it shows the previously uploaded file:

When doing a hard refresh (CTRL + R) the file uploader is then empty. The problem appears to be related to the browser remembering the previous uploaded file.