Headerless Framework Pages 
The headerless framework pages supplied with SAP NetWeaver Portal supports the headerless navigation mode. The headerless framework pages do not include the page title bar nor any of the navigation elements in the header area. The navigation panel does not contain a Detailed Navigation iView, but it does display related links, Drag&Relate targets and dynamic navigation in the provided navigation panel.
The headerless framework pages are included in the Classic Framework Page and the Light Framework Page by default.
Two versions of the headerless framework page are provided with the portal:
Headerless Framework Page contains a version of the Desktop Innerpage whose Isolation Method property is set to URL.
Location in Portal Catalog:
Portal Content 
Portal Users Standard Portal Users Headerless Framework Page 
(pcd:portal_content/every_user/general/com.sap.portal.headerless_frameworkpage)
Headerless Framework Page (Embedded) contains a version of the Desktop Innerpage whose Isolation Method property is set to Embedded.
Location in Portal Catalog:
Portal Content Portal Users Standard Portal Users Headerless Framework Page (Embedded) (pcd:portal_content/every_user/general/com.sap.portal.embedded_headerless_frameworkpage)
More information: Isolation Method of iViews
Caution
Do not modify the delta link source object of the above-mentioned framework pages, which are located in a subfolder under the Content Provided by SAP folder.
Pages and iViews in the Headerless Framework Pages
The Headerless Framework Page and teeh Headerless Framework Page (Embedded) are portal pages which each contain the following iViews and pages:
iView: Page Title Bar. More information: Page Title Bar Navigation
Page: Desktop Innerpage (com.sap.portal.innerpage)
This page contains the following iViews that are displayed in the navigation panel (see Navigation iViews) and the content area:
iView: Dynamic Navigation (see Dynamic Navigation)
iView: Related Links (see Related Links)
iView: Drag&Relate Targets (see Drag&Relate Targets)
iView: Content Area
Layouts in the Headerless Framework Pages
The headerless framework pages and the Classic Framework Page use the same layout objects. More information: Classic Framework Page