public async Task <IActionResult> CreateVersion(string provider, string id, [FromForm] string label)
{
var user = _userContextAccessor.GetContext();
var page = await _pageManager.GetByIdAsync(id);
if (!_pageSecurity.CanDesignPage(user, page))
{
return(this.Unauthorized());
}
var draft = await _pageManager.CreateDraftVersion(id, user.Name, label);
return(Redirect($"/sys/page/{id}/design?version={draft.VersionCode}"));
}