<c:import> can reach OUTSIDE the web app
With <jsp:include> or the include directive, you can include only pages that are part of the current web app. But now with <c:import>, you have the option to pull in content from outside the Container. This simple example shows a JSP on Server A importing the contents of a URL on Server B. At request time, the HTML chunk in the imported file is added to the JSP. The imported chunk uses a reference to an image that is also on Server B.
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