How get Facebook token using Oauth2 with chrome.identity
I'm using chrome.identity in a packaged app to get a user token using Facebook. I call chrome.identity.launchWebAuthFlow, and I need to take the access token, send it to the server, and then access token is used to verify the user. Works great with Google+. But for some reason, it doesn't work for Facebook. For some reason, Facebook's OAuth appears to be special. I've added the extensionid.chromiumapp.org to the list of redirect URLs in the API. Added "https://extensionid.chromiumapp.org/*", "https://facebook.com/*", "https://www.facebook.com/dialog/", "https://graph.facebook.com/*" to