Add HTML5 authoring rollback detail

services/api-server/src/api_server/main.py

@@ -37,6 +37,7 @@ from pydantic import BaseModel, Field
 
 from api_server.html5 import (
     render_html5_authoring_changes,
+    render_html5_authoring_change_detail,
     render_html5_editor,
     render_html5_index,
     render_html5_project_setup,
@@ -1741,6 +1742,14 @@ async def html5_project_authoring_changes(project_id: str) -> Response:
     )
 
 
+@app.get("/html5/projects/{project_id}/authoring/changes/{change_id}")
+async def html5_project_authoring_change_detail(project_id: str, change_id: str) -> Response:
+    return Response(
+        render_html5_authoring_change_detail(project_id, _authoring_rollback_preview(project_id, change_id)),
+        media_type="text/html; charset=utf-8",
+    )
+
+
 @app.get("/html5/projects/{project_id}/setup")
 async def html5_project_setup(project_id: str) -> Response:
     setup = _project_setup_response(project_id)