Download Job: Truncate excessively long URLs
Limit them to a reasonable length, and don't send data URLs at all since they aren't human-readable and typically very long.
Modeled after what KIO does in a CopyJob.
5.27 or 5.24, even, please
Had to change the qMakePair<QString, QString>
because I otherwise got
error: cannot bind rvalue reference of type ‘QString&&’ to lvalue of type ‘QString’
Edited by Kai Uwe Broulik