Redirect URL settings
You can define redirect URL (Site URL to redirect user after uploading or clicking “Cancel” button).
Redirect URL can be also a query string.
Note: You should use Url encoding to encode text in query string
Note: if a value is set in query string, web part settings will be ignored.
To define Redirect Url use redirect key.
It is also possible to refresh page after upload with “refresh” redirect URL.