Multiple background images do not embed in combined HTML file

[sebdunnett]

Multiple background images work with Quarto + revealjs, but they do not embed into the combined HTML file with embed-resources.

MWE:

---
title: "Untitled"
format: revealjs
embed-resources: true
---

## Test {background-image="image1.jpg, image2.jpg, image3.jpg, image4.jpg" background-size="50% 50%,50% 50%,50% 50%,50% 50%" background-position="top right,top left,bottom left,bottom right"}

## Local image embeds fine

![](image1.jpg)

## URL image also embeds

![](https://quarto.org/quarto.png)

[cderv]

Background image set on the attribute are not included when embed-resource: true, even a single one IMO.

I believe this is a duplicate of #980 related to Pandoc's issue jgm/pandoc#5124

I'll close this issue as duplicate of #980 - please follow resolution there

[cderv]

Duplicate of #980