I have been asked to integrate Facebook Chat to my application using JavaScript only. I cannot use X Facebook platform authentication as it needs a domain URL. So my option is to set up an XMPP chat client using strophe.js via a digest MD5 SASL mechanism.
Regarding BOSH connect manager, http://bosh.metajack.im:5280/xmpp-httpbind. Is this enough or should I configure it in my server? I am using the Tomcat server.
Facebook does not do S2S federation, only C2S, so you will have to use that as your XMPP server (or implement something like XEP-0100 at your server). Facebook does not currently support BOSH, AFAIK.