I am attempting a very basic script that loads a Portal WebMap using the Esri JS API. Here is the error message I am getting:

(index):146 [esri.WebMap] #load() Failed to load web map 
error: l
getHeader: V=>ya.headers.get(V)
httpStatus: 400
messageCode: "CONT_0001"
messages: []
raw: {code: 400, messageCode: 'CONT_0001', message: 'Item does not exist or is inaccessible.', details: Array(0)}
requestOptions: {authMode: 'auto', body: null, cacheBust: false, method: 'auto', query: {…}, …}
ssl: false
subCode: undefined
url: "https://www.arcgis.com/sharing/rest/content/items/c1127b4c1e3e4ab9bd3005192f6e6731"
[[Prototype]]: Object
message: "Item does not exist or is inaccessible."
name: "request:server"
[[Prototype]]: c
[[Prototype]]: Object
message: "Failed to load portal item"
name: "webmap:load-portal-item"
[[Prototype]]: c

Here is my JS script:

require(["esri/config","esri/views/MapView", "esri/WebMap"], 
  (esriConfig, MapView, WebMap) => {

  var esriConfig = {
    portalUrl: "https://domain/portal/home/",

  const webmap = new WebMap({
    portalItem: {
      // autocasts as new PortalItem()
      id: "c1127b4c1e3e4ab9bd3005192f6e6731"

  const view = new MapView({
    map: webmap,
    container: "viewDiv"

Here is my HTML script:

<!DOCTYPE html>
  <meta charset="utf-8">
  <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
      #viewDiv {
        height: 100%;
        width: 100%;
        margin: 0;
        padding: 0;

  <div id="viewDiv"></div>
  <script src="https://js.arcgis.com/4.24/"></script>
  <script src="js/test_main.js"></script>

  • 2
    'Item does not exist or is inaccessible.' It's trying to access a webmap which doesn't seem to exist (see e.g. at arcgis.com/home/item.html?id=c1127b4c1e3e4ab9bd3005192f6e6731 ). Are you using ArcGIS Online or Enterprise for this webmap? Is it a public web map? Jul 25, 2022 at 21:02
  • I'm using Enterprise for the webmap and it's shared publicly. It seems to be directing me to argis.com instead of taking on my Portal domain... Jul 26, 2022 at 12:53
  • Does the network traffic show any requests to your enterprise? Maybe with some errors that makes it default back to ArcGIS Online? Jul 26, 2022 at 16:39

1 Answer 1


There are two way to specify the portalURL. Does it work if you change it from using the global esriConfig variable and instead do:

esriConfig.portalUrl = "https://domain/portal/";


  • 1
    I found out that adding the /home to the url was messing things up.... Aug 9, 2022 at 13:48

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