wmsLayer 'onlineResource' Url problem when using proxy

Ch_Schmid — Thu, 11 Jan 2024 15:02:02 GMT

I'm developing a webapp with vue and ArcGIS API for JavaScript 4.16 and have the following problem:

I create a wmsLayer with a resource that I call via a proxy (definition in Vue). This forwarding works so far and the Getcapabilities.xml is queried.
Correct Url:
http://localhost:8080/mapserver/?SERVICE=WMS&REQUEST=GetCapabilities&map=fledermaus_flugkorridore_vdc&crs=21781

Server Url that ist fowarded:
https://mapserver.test.ch/cgi-bin/mapserv

However, I get an unspecific error in the map and the layer is not overlaid..
[esri.layers.WMSLayer] #load() Failed to load layer (title: 'Layer', id: 'ch.wsl.vdc.oei_Quartiere') TypeError: r is null

However, I have noticed that the OnlineResource is inserted incorrectly in Getcapabilities.xml, which presumably means that the layer cannot be loaded.

The class 'wmsLayer' is a blackbox for me. Someone any ideas..?
Thanks Christian

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wmsLayer 'onlineResource' Url problem when using proxy