Are you using roUrlTransfer or HD/SDPosterUrl, etc?
I've also been just pulling files with URLtransfer to check if they work in the same situations, and they don't.
How about if you open it in "incognito"/"private" browser window - does it work outright or does it force you to login first? If the latter, means it worked for you in the browser because you had previous session opened and it sends some cookies with each request.
The next thing I would try is to use an image that is known to work.
Try using this url instead of the one you posted, and see if the image appears:
Also, just because your roUrlTransfer returned a 200 code, it doesn't mean that it retrieved an image; you'd have to dump out the data (use the debugger) to see if it looks like it's in jpeg format, or something else (like a text string telling you what's going on).
Mark, with the authorization requirement, I don't see how you can duplicate my setup without a Synology NAS on 6.0. I was sort of hoping for some obvious url error I wasn't seeing.
Actually i am doing the log-in and using it. First you do the Auth, and you get a session id. then you attach that to every request. So next i get the list of files and that is fine. If you look at my first post, you'll see it.
Underscore in front of sid, yes?
Also i am suspicious about the use of "mode=download" instead of "mode=open", since that changes `Content-Type` and sends `Content-Disposition` header in response - and i don't know if that will affect Roku's behavior (no reason to but `open` seems safer).