We use the Dropbox Chooser API and have recently started having a problem with it (from last two days). Now when the user selects a file from the Chooser pop-up then clicks "Choose" to confirm their selection, an error appears saying "Failed to load request". The pop-up window does not close and nothing is returned to our app. But this is happening only in MacOS (in all browsers). It is working fine in Windows and Linux.