Revert "remove content length header because we cant make sure that this is the only output. For instance in the admin page you need to render a subset of the page as a template, setting a content length header breaks the page cc @tanghus"
Revert "remove content length header because we cant make sure that this is the only output. For instance in the admin page you need to render a subset of the page as a template, setting a content length header breaks the page cc @tanghus"

This reverts commit 09eefe1d757189d968d23ab7399419bb1231ecec.

houqp/appframework,houqp/appframework,Gomez/appframework,Gomez/appframework,houqp/appframework,Gomez/appframework