Add withCredentials option #614
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Note: the
engine.io.jsfile is the generated output ofmake engine.io.js, and should not be manually modified.The kind of change this PR does introduce
Current behaviour
withCredentialsis always set to true, despite the browser default being false, and can't be overridden.New behaviour
withCredentialscan now be overridden back to false if needed.Other information (e.g. related issues)
Fixes #495. Specifically cross-origin requests to servers setting
Access-Control-Allow-Origin: *break withxhr.withCredentials = true.Similar to the symptom of the recent problem in socketio/socket.io#3381 but a client-side workaround when the server-side can't be changed as it could in that case.