Does web.config transform work with Blazor web assembly projects?

[qudooschaudhry]

I want to be able to control this portion as part of my build pipeline

<httpProtocol>
   <customHeaders>
     <add name="blazor-environment" value="DEV" />
   </customHeaders>
 </httpProtocol>

However, I have not been able for the any transforms to work as part of

dotnet publish --configuration Release

This works in a regular asp.net core app but not in the web assembly project. Is there a different way to achieve this?