The Customize Posts plugin allows posts and pages to be updated and created in the Customizer. When it modifies/creates a post or page, it forces the permalinks for these posts to be preview URLs like /?preview=true&page_id=123 since the slugs may be modified in the customized state. These URLs are not recognized by the current router implementation, so this preview URL rewriting needs to be disabled to prevent Customizer navigation from being completely broken when the Customize Posts plugin is active.
The Customize Posts plugin allows posts and pages to be updated and created in the Customizer. When it modifies/creates a post or page, it forces the permalinks for these posts to be preview URLs like
/?preview=true&page_id=123since the slugs may be modified in the customized state. These URLs are not recognized by the current router implementation, so this preview URL rewriting needs to be disabled to prevent Customizer navigation from being completely broken when the Customize Posts plugin is active.