Rendering Sibling XmlNodes Side-By-Side for HTMX OOB Responses

[kill-face]

Hello,

I've been trying to understand how best to approach HTMX OOB responses when using Falco. I'm having issues returning rendered, side-by-side XmlNodes (no parent root node) using Falco's built-in renderer. Based on my reading, HTMX wants nodes side-by-side for OOB responses, but Falco's renderer will only render a single node at a time.

HTMX's expected HTML

<div>
 ...
</div>
<div id="alerts" hx-swap-oob="true">
    Saved!
</div>

src

Falco's renderer

[<AutoOpen>]
module XmlNodeRenderer =
    let private render (tag : XmlNode) (header : string option) =
        let sb = StringBuilderCache.Acquire()
        let w = new StringWriter(sb, CultureInfo.InvariantCulture)
        match header with
        | Some x -> w.Write x
        | None   -> ()
        XmlNodeSerializer.serialize(w, tag)
        StringBuilderCache.GetString(w.GetStringBuilder())

src

---

A solution to this is simply to render each node then concatenate the strings (or re-implement the renderer to handle a list of nodes), but figured I would ask here for insight on something I might be missing before picking one of those solutions.

Thanks for any help and thanks to everyone whose contributed to Falco -- it's been lovely to develop with :)