Well the first four letter are an acroynm we created for the technology. X is for Cross-domain, A is for asynchronous, J is for JavaScript and R is for request. The last three letters was an attempt to make it into something we could pronounce and we pronounce it like the word exaggerate.

It's early days and so far no-one has had any problems or asked us anything worth putting on here apart from "that's cool". So please feel free to contact us with any issues or questions so we can fill this page up.