Map Image Service not allowing Transparency

[KatiePhillips_ODNR]

Hi,

I have a webmap that contains a Map Image Service. I've added that webmap to my Experience Builder and in the 'Layers' widget started selection the options I want users to be able to interact with. One of those options is to allow users to create a 'Transparency' on the layers. I have it selected, but when I published the Experience Builder, 'Transparency' is not an option. I tested this with other Map Image Services and have the same results. I tested this with Feature Services and it allows the transparency. Has anyone else experienced this and know why its happening? Have you figured out a work around?

Thank you,

[TonghuiMing]

Hi @KatiePhillips_ODNR 

The reason is that, to put it simply, for these sub-layers of the map image service, adjusting the transparency requires additional requests to the server for a new image to display, which is quite different from a regular feature layer (client-side rendering).

This depends on the service capability - whether the server side supports a dynamic renderer, and certain services do not support it.