From 62932e964f1f9926468b42ee48366312536a63a1 Mon Sep 17 00:00:00 2001
From: Brent Ely <gitbrent@users.noreply.github.com>
Date: Sat, 18 Mar 2023 01:48:59 -0500
Subject: [PATCH] added check for `cover` is base64

---
 src/gen-objects.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gen-objects.ts b/src/gen-objects.ts
index f0c86d5c..2380a51e 100644
--- a/src/gen-objects.ts
+++ b/src/gen-objects.ts
@@ -542,6 +542,8 @@ export function addMediaDefinition (target: PresSlide, opt: MediaProps): void {
 		throw new Error('addMedia() error: either `data` or `path` are required!')
 	} else if (strData && !strData.toLowerCase().includes('base64,')) {
 		throw new Error('addMedia() error: `data` value lacks a base64 header! Ex: \'video/mpeg;base64,NMP[...]\')')
+	} else if (strCover && !strCover.toLowerCase().includes('base64,')) {
+		throw new Error('addMedia() error: `cover` value lacks a base64 header! Ex: \'data:image/png;base64,iV[...]\')')
 	}
 	// Online Video: requires `link`
 	if (strType === 'online' && !strLink) {