This test requires flash and a server that runs php. (For bug233492_redir.php) ( A meta or javascript redirect will not reproduce this.)

When the Flash player loads, it will load bug233492_redir.php, which will redirect to bug233492.flv.

When bug233492.flv starts to download, you should see bytesTotal and bytesLoaded. In Opera, because of the redirect, bytesTotal is -1 until bug233492.flv is fully downloaded. In Firefox, bytesTotal is known right away. If the player is setup to load bug233492.flv directly, you won't see this problem in Opera. It's only with a redirect to the flv file.