From 769d7dd732e3994c314f34e2aa2efc10a7740e7e Mon Sep 17 00:00:00 2001
From: Frederic Junod <frederic.junod@camptocamp.com>
Date: Wed, 28 Nov 2018 16:00:55 +0100
Subject: [PATCH] Change urls property in TileArcGISRest to optional

The `urls`property is optional if `url` is defined.
---
 src/ol/source/TileArcGISRest.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/source/TileArcGISRest.js b/src/ol/source/TileArcGISRest.js
index ea0e8c85a3..c76710a3d9 100644
--- a/src/ol/source/TileArcGISRest.js
+++ b/src/ol/source/TileArcGISRest.js
@@ -44,7 +44,7 @@ import {appendParams} from '../uri.js';
  * @property {boolean} [wrapX=true] Whether to wrap the world horizontally.
  * @property {number} [transition] Duration of the opacity transition for rendering.  To disable the opacity
  * transition, pass `transition: 0`.
- * @property {Array<string>} urls ArcGIS Rest service urls. Use this instead of `url` when the ArcGIS
+ * @property {Array<string>} [urls] ArcGIS Rest service urls. Use this instead of `url` when the ArcGIS
  * Service supports multiple urls for export requests.
  */