[Sample Of Aug 15th] How to cross domain with JSONP, jQuery and RESTful WCF service provider


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CS Version: http://code.msdn.microsoft.com/How-to-cross-domain-with-f24d4754

VB Version: http://code.msdn.microsoft.com/How-to-cross-domain-with-8174e773

This code sample demonstrate how to use jQuery or original JavaScript to cross domain. JSONP is a convention used to invoke cross-domain scripts by generating script tags in the current script. The result is returned in a specified callback function. JSONP is based on the idea that tags such as <script src="http://..." > can evaluate scripts from any domain and the script retrieved by those tags is evaluated within a scope in which other functions may already be defined. You can find the answers for all the following questions in the code sample:

  • How to use $.getJSON to read a JSONP request?
  • How to use original JavaScript to read a JSONP request?

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