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README.md

Sandbox

This sample creates a sandboxed iframe (sandbox.html) to which the main page (mainpage.html) passes a counter variable. The sandboxed page uses the Handlebars template library to evaluate and compose a message using the counter variable which is then passed back to the main page for rendering.

The default packaged app Content Security Policy (CSP) value disallows the use of eval() or new Function() (or variants like Function.apply()) so using a sandbox is necessary for this process. To enable sandboxing in your app you add the sandbox property to your app's manifest file.

See more info on using eval safely in packaged apps.

APIs