Which AEM feature provides support for content editing of single-page applications?

The AEM SPA Editor is a specific framework designed to enable in-context editing of Single-Page Applications (SPAs). It allows content authors to edit and manage the content of an SPA using the familiar AEM page editor interface, just as they would with traditional server-side rendered AEM pages. The SPA Editor achieves this by mapping SPA components to AEM components, allowing the SPA to remain the primary driver of the user experience while AEM provides the authoring capabilities.

B. SPA Blueprint: This is a project archetype used to generate the initial structure and configuration for an AEM-based SPA project, not the editing tool itself.
C. Fluid Experiences: This is a marketing term describing responsive and omnichannel content delivery, not a specific, named technical feature within AEM for editing SPAs.
D. AEM Assets: This is the Digital Asset Management (DAM) component of AEM, used for managing images, videos, and other digital assets, not for editing the structure or textual content of a page.

1. Adobe Experience League Documentation, "Introduction to SPAs and Walkthrough." This document states, "The AEM Single-Page Application (SPA) Editor feature offers a solution for authoring content for SPAs within AEM." It explicitly identifies the SPA Editor as the feature for this purpose. (See the "Introduction" section).

2. Adobe Experience League Documentation, "SPA Editor Overview." This guide details the architecture and functionality, explaining, "The SPA Editor provides a thin layer that sits on top of the SPA and which communicates with the editor to retrieve the content and allow for in-place editing." (See the "Introduction" section).

3. Adobe Experience League Documentation, "Getting Started with SPAs in AEM - React." This tutorial describes the role of the AEM Project Archetype, which includes the SPA Blueprint. It clarifies that the archetype is used to "generate a minimal Adobe Experience Manager project as a starting point for your own SPA." This distinguishes its role from the editor. (See the "Prerequisites" and "Create an AEM Project" sections).