laptop and a wrench

Bug

When adding a case-sensitive Web Map Service (WMS) to a WMS layer, the properties are sent in lowercase to the service, causing the layer to fail to load.

Last Published: April 7, 2021 ArcGIS API for JavaScript
Bug ID Number BUG-000138677
SubmittedApril 1, 2021
Last ModifiedJune 25, 2025
Applies toArcGIS API for JavaScript
Version found4.18
Operating SystemWindows OS
Operating System Version10.0 64 Bit
Version Fixed4.23
StatusFixed

Workaround

Set the 'imageTransparency' property of the Web Map Service (WMS) class to an uppercase 'TRUE'. Refer to https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-WMSLayer.html#imageTransparency for more information.

Steps to Reproduce

Bug ID: BUG-000138677

Software:

  • ArcGIS API for JavaScript

Get notified when the status of a bug changes

Download the Esri Support App

Discover more on this topic

Get help from ArcGIS experts

Contact technical support

Download the Esri Support App

Go to download options