Fingerprint Question

[Paul Tiseo]

So, on the /servers/websocket.html page, it states "actionhero provides connection.fingerprint where available". When is it NOT available?

[Evan Tahler]

Basically it's available in browsers (and things that act like browsers), and not in places that don't.  The fingerprint is a way to link the WS connection to other HTTP connections the same user may have made in a browser by sharing the data in a fingerprint cookie.  However, there are lots of other ways to consume the websocket protocol outside of a browser, like this Primus wrapper for ObjectiveC.  These clients will not have a fingerprint. 

I have to be careful to not call out "native apps" because you can use a tool like phonegap which will help you to author an iphone application, but it really just wraps a webview, and webviews have cookies, and will end up with a fingerprint. 

Code here: https://github.com/evantahler/actionhero/blob/master/servers/websocket.js#L191-L200