Proper Way to Load WMSLayer in ArcGIS JSAPI 4.12?

JerryChen — Thu, 12 Dec 2019 08:04:26 GMT

I'm getting '#load() Failed to load layer TypeError: Cannot read property 'indexOf' of undefined' error when I tried to load WMSLayer in my application.

I've tried several different WMS service URLs but with no positive results. The code from the official sample doesn't work either.

A similar question has been asked and someone suggested that using proxy might solve the issue, but implementing proxy seems to be a quite complicated process. Please note that the URL in the question has http instead of https like in my application, the error is different from what I'm getting as well.

Does anyone figure out what I'm doing wrong or anything I missed out?

Here's my code :

let wmsLayer = new WMSLayer({    title: "WMS Layer",    url: "https://ows.terrestris.de/osm/service",    sublayers: [{        name: "OSM-WMS"    }]});var basemap = new Basemap({    baseLayers: [wmsLayer]});var map = new Map({    basemap: basemap,    layers: [gridLayer, forceSymbolLayer, measurementLayer, sketchLayer]});var mapView = new MapView({    map: map,    zoom: initZoom,    center: initPosition});

Re: Proper Way to Load WMSLayer in ArcGIS JSAPI 4.12?

AnneFitz — Fri, 13 Dec 2019 21:41:05 GMT

Hi Jerry,

I created a codepen from the code you provided above, but removed the other layers (because I did not have their information): https://codepen.io/annefitz/pen/ZEYppzq The WMSLayer seems to load fine in this sample. Is the error coming from one of your other layers?

Thanks,

Anne

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Proper Way to Load WMSLayer in ArcGIS JSAPI 4.12?

Re: Proper Way to Load WMSLayer in ArcGIS JSAPI 4.12?