I am looking for a developer who can make a popup with js after finishing the authorization process of a facebook app , and send the user to debug token with the app id as get param.
IT will show user's token. You need to read it via JS.
Basically dev needs to bypass cross origin policy and submit the form in the frame to
generate the token and then to capture the token, open a child window and navigate to debug token for app page.
You can get it from there.