Get bucket upload URLs is not working on IOS?

Get bucket upload URLs is not working on IOS. Any idea why?

There’s no other issue that I know regarding get bucket upload URLs other than that it fails silently if the file is null or invalid.

However the issue may be that the pick files produces the file url in the wrong format for iOS (correct for Android). I have circumvented this by using pick image from library, which gives the url in the correct format for iOS.