Runtime Feature Layers Not Detected by fetchPopupFeatures() in 5.1

JeffreyThompson2 — Wed, 05 Aug 2026 15:42:53 GMT

I have been trying to build an application that can work even if the Enterprise Portal goes down. Because of this limitation, layers must be added at runtime. I cannot depend on a Webmap.

I have not been able to find a non-deprecated way to get a Popup, Feature, or Features Component to detect a Feature or Map Image Layer that has been loaded at runtime. I've tried the new fetchPopupFeatures() function, the standard Popup and even directly calling hitTest().

I have created a sample in CodePen. The sample has both a standard Popup enabled and a Features Component. The data that is pre-loaded in the Webmap is detected by both. I has added a layer of bigfoot sighting, symbolized by orange balls. This layer is not being found by either.

https://codepen.io/editor/jeffrey-thompson/pen/019fd25d-36cf-71a1-95fa-388574bc8f31

I was able get my application working by using the deprecated fetchFeatures() function. These lines are commented out in my CodePen, but do not appear to work in the sample either.

Re: Runtime Feature Layers Not Detected by fetchPopupFeatures() in 5.1

LaurenBoyd — Thu, 06 Aug 2026 17:30:12 GMT

Hi @JeffreyThompson2 -

The `fetchFeatures()` method belongs to the Popup/Features component and utilizes the `defaultPopupTemplate` property to generate a popup for features that do not already have a popup template defined. In contrast, the `fetchPopupFeatures()` method is managed by the arcgis-map component/view and operates independently of the Popup/Features component. To retrieve popup feature information using this method, the layer must have a popup template set beforehand.

I updated your codePen sample to show how to get this to work: https://codepen.io/editor/laurenb14/pen/019fd7d2-3bf8-73e3-942e-7550deb9d794

Hope this helps! Thanks.

topic Runtime Feature Layers Not Detected by fetchPopupFeatures() in 5.1 in ArcGIS JavaScript Maps SDK Questions

Runtime Feature Layers Not Detected by fetchPopupFeatures() in 5.1

Re: Runtime Feature Layers Not Detected by fetchPopupFeatures() in 5.1