From 729d97f35029d30dac59511876d16c033f24be98 Mon Sep 17 00:00:00 2001
From: Manas Sharma <sharma.manas271196@gmail.com>
Date: Mon, 31 Oct 2022 12:08:23 +0530
Subject: [PATCH] Fixes stack background not loading previous steps

Thanks to @pmagtulis for finding this bug.

stackBackground wasn't loading all previous steps because of preload.

Fixed by adding stackBackground check inside the preload math.
---
 src/components/Scroller/Background.svelte | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/components/Scroller/Background.svelte b/src/components/Scroller/Background.svelte
index 751c2d6b..3b32b0ad 100644
--- a/src/components/Scroller/Background.svelte
+++ b/src/components/Scroller/Background.svelte
@@ -9,7 +9,8 @@
 
 {#each steps as step, i}
   <!-- Load the step(s) before and after the active one, only -->
-  {#if preload === 0 || (i >= index - preload && i <= index + preload)}
+  <!-- Unless stackBackground is true. If so, keep all steps before the current one loaded. -->
+  {#if preload === 0 || (i >= (stackBackground ? 0 : index - preload) && i <= index + preload)}
     <div
       class="step-background step-{i + 1}"
       class:visible="{stackBackground ? i <= index : i === index}"