For HMR: a component mount itself to the subapp/pipeline - empty filler
Hot module reload (HMR) support - empty filler
For HMR: a component unmount itself from the subapp/pipeline - empty filler
Optional frameworkoptions for rendering the subapp into HTML page
Optional outputspot in HTML output to inject the result from SSR
Optional prepdata from prepareData
Optional preparethe promise for subapp's data prepare
Optional ssrOptional startStatic INITIAL_
The server side rendering pipeline for a subapp
The pipeline involves preparing the data (which is async), and then rendering the component to string or stream, which can be sync or async.
It's also possible that the subapp only wants the data but not actually rendering the component.