LearnBoost/engine.io-client — Issue #21: XHR Polling returns status 0 when closing the window on FF
Author: ruxkor
Created: 2012-02-29 14:50:28+00:00
State: open

With polling activated, if a browser closes the window while polling, the client socket emits an error.

Apparently this is because the `XMLHttpRequest` object on firefox, while having a `readyState` of 4, has a `status` of 0.