Cross-domain REST proxy with Javascript, HTML5

Posted by Bosh on Stack Overflow See other posts from Stack Overflow or by Bosh
Published on 2010-06-15T04:37:09Z Indexed on 2010/06/15 4:42 UTC
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JavaScript

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AJAX

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rest

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iframe

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postmessage

I'm writing a service (say, service.com) that provides a REST API to external apps running inside of IFrames. (These apps are hosted from domains outside the service.com).

I'm planning a javascript client library for the apps to make pure-javascript requests to the service.com REST API -- basically using postMessage and some ad-hoc encapsulation of my API calls to get messages back and forth across frames (from the outside-app.com IFrame --> service.com REST API, and back to the IFrame with a response).

My question: is there any robust, general-purpose javascript library to accomplish the kind of cross-domain REST request proxying I need, or should I just hack it from scratch?

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