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Showing posts from December, 2013

YUI Cross-Domain transactions without Flash

Recently I've worked on the application making cross-domain ajax calls with YUI. While YUI offers io-xdr module for making cross-domain requests via Flash transport, it seems to me quite unnatural as it leads to unnecessary complexity. Moreover, io-xdr was marked deprecated several months ago without explicit mentioning the preferred way. An obvious alternative is using XMLHttpRequest as a transport for cross-domain requests. However, it has some limitations and undocumented pitfalls that I'd like to review in this post. Cross-Domain request using XMLHttpRequest.YUI IO Utility.YUI Datasource IO.Cross-Domain request using XMLHttpRequest
Cross-domain requests can be sent using a common XMLHttpRequest object. The only requirement is that the server must be configured to properly handle those requests. Specifically, it should set the Access-Control-Allow-Origin response header according to Cross-Origin Resource Sharing specification. For more details and good tutorials you can ref…