flXHR(flex-er) is a *client-based* cross-browser, XHR-compatible tool for cross-domain client-to-server Ajax (Flash) communication. It utilizes an invisible flXHR.swf instance that acts as sort of a client-side proxy for requests, combined with a Javascript object/module wrapper that exposes an identical interface to the native XMLHttpRequest (XHR) browser object, with a few helpful additions and a couple of minor limitations