Princeton S* Network Systems» Blog Archive » JavaScript in JavaScript (js.js): Sandboxing Third-Party Scripts: "js.js is a JavaScript interpreter (which runs in JavaScript) that allows an application to execute a third-party script inside a completely isolated, sandboxed environment. An application can, at runtime, create and interact with the objects, properties, and methods available from within the sandboxed environment, giving it complete control over the third-party script. js.js supports the full range of the JavaScript language, is compatible with major browsers, and is resilient to attacks from malicious scripts."
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