Evaluating actions in jsp:import Fragments

Question

Greetings,
I'm using JSP fragments for the first time and encountered some surprises where the fragment did not evaluate as expected. The fragment evaluates fine when it is a block of JSP code, but if I put the same code into a separate JSP file and include it, the block does not get processed in the same way. For example:
<my:tagFoo foo="bar">
<jsp:attribute name="content">
<jsp:include page="MyPage.jsp" flush="false"/>
</jsp:attribute>
</my:tagFoo>
Some strings get substituted as expected, but control statements like <c:forEach ...> remain literal text and are never processed. I've tried the "MyPage.jsp" in a non-fragment context and verified that it works fine. Is there a way to get the tag with the jsp:invoke part to fully process the included page?
If I put the same fragment block into a separate tag (my preferred approach), other errors get thrown at control statements during the jsp:invoke.
Any help appreciated!
-Daniel

Answer 1

Thanks, for the response! I kept reducing the code in the "my:tagFoo" tag that called the invoker until it was minimalistic -having the essential headers and just the jsp:invoke line with an echo of the content generated. I did try changing the "body-content" to the other valid values but it didn't help, perhaps a line is missing?
<%@ tag body-content="empty" %>
<%@ attribute name="content" fragment="true" required="true" %>
<%@ attribute name="foo" required="true" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<%@ taglib tagdir="/WEB-INF/tags" prefix="my" %>
<jsp:invoke fragment="content" var="output"/>
<xmp>
${output}
</xmp>