build: OpenLayers 4.2.0 -> 4.6.5

spatial/static/spatial/js/gridmap.js

@@ -169,7 +169,8 @@ function getLayersForCurrentTimestamp()
  */
 async function initGridMap(inputModelId, wmsURL, mapAttribution) {
     modelId = inputModelId;
-    var backgroundLayer = new ol.layer.Tile({
+    console.info("Init grid map " + inputModelId)
+    let backgroundLayer = new ol.layer.Tile({
 		source: new ol.source.OSM({
 			attributions: [
 				new ol.Attribution({
@@ -557,4 +558,4 @@ function moveDateSlider(step)
     newValue = newValue > max ? max : newValue < min ? min : newValue;
     slider.value=newValue;
     slider.onchange();
-}
+}
\ No newline at end of file