From a92c992e1a529503a68b44b644c27dc89107d291 Mon Sep 17 00:00:00 2001
From: Kevin Schmidt <kschmidt@caci.com>
Date: Wed, 3 Oct 2018 13:55:12 -0600
Subject: [PATCH] Cast to Array to avoid false union mismatch

---
 src/ol/control/OverviewMap.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/control/OverviewMap.js b/src/ol/control/OverviewMap.js
index 2de4505ab4..9c496034f2 100644
--- a/src/ol/control/OverviewMap.js
+++ b/src/ol/control/OverviewMap.js
@@ -155,7 +155,7 @@ class OverviewMap extends Control {
     const ovmap = this.ovmap_;
 
     if (options.layers) {
-      options.layers.forEach(
+      /** @type {Array<import("../layer/Layer.js").default>} */ (options.layers).forEach(
         /**
          * @param {import("../layer/Layer.js").default} layer Layer.
          */