TransferState provides a shared store that is transferred from the
server to client. To use it import BrowserTransferStateModule from the
client app module and ServerTransferStateModule from the server app
module and TransferState will be available as an Injectable object.
PR Close#19134
A multi RENDER_MODULE_HOOK provider can provide function that will be called with the current document just before the document is rendered to
string.
This hook can for example be used for the state transfer module to serialize any server state that needs to be transported to the client, just before the current platform state is rendered to string.
PR Close#19023
