got the same problem... i’m seearching for hours now - have you found a solution in the meantime?
(i want to use the imagebrowser MCPUK with FDM in the Frondend and got as far as the "browser-image" beeing displayed by inserting
file_browser_callback : true ,
in my TinyMCE Config.
i think that maybe a solution could be to get the FDM to think that a Manager User is logged in - somewhat similar to the way QuickEdit does it - But at the moment i have no Clue how that could be done..
EDIT:
i know this is a stupid mistake, but maybe it helps someone...: i read this thread
http://modxcms.com/forums/index.php/topic,5516.45.html and realized that i hadn’t turned the ressource browser in frontend option.
now i have, but nothing has changed...i still need "file_browser_callback : true ," in the fdm tinymce config to get the button shown, but when i click it, nothing happens - maybe its a problem with the link not beeing genereated correctly