Page History
...
Editing content of an SPA page
Since content editing in an external front-end app is a complex and challenging task, the React/Angular apps currently don't provide remote content-editing capabilities through REST. All All content editing is done in the Pages app of the Magnolia author instance. The Magnolia-provided SPA renderer libraries ensure that a SPA project can be edited in the Pages app. The SPA renderer produces template annotations, which the Pages app transforms into the green toolbars – editable page elements.
...
Overview
Content Tools