I have a bunch of external dependencies in my app (XML, HTML, Web Services etc).
These can change w/o notice. How do I allow myself to fix them without having all traffic go through my server and without waiting for an app to be certified by the marketplace?
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I wrote a series of blog posts about exactly how to do this by using XPath and Javascript to be able to customize your app and allowing you to fix/change elements in your application without going through recertification.
You can take a look at the first post in the series and take it from there.
http://socialeboladev.wordpress.com/2012/09/03/change-resilient-windows-phone-apps-2/