The W3C has published The XMLHttpRequest Object specification working draft…
As you may know, the XMLHttpRequest object is at the center of AJAX, and while it is implemented across Web browsers, the implementations are not 100% interoperable, requiring special handling by developers.
The goal of this W3C XMLHttpRequest specification is to “document a minimum set of interoperable features based on existing implementations, allowing Web developers to use these features without platform-specific code.”
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