- JotForm SupportMike_TAnswered on October 21, 2014 at 04:49 PM
We use a standard input with a type 'file' for a Single Upload field. That standard field is being handled by the native upload field implementation of the internet browser, and we have no control over it. It means that the progress bar is a part of the Google Chrome browser, but unfortunately, there is no such progress bar implemented by the Safari browser.
Please feel free to contact us if you need any further assistance.