[Coil3][Compose Multiplatform] Fix error 403 on ImageRequest?

[mew22]

Hello guys,

I am trying to get a SVG image from multiavatar like (https://api.multiavatar.com/qwerty.svg) but I got following errors:
coil3.network.HttpException: HTTP 403

Some discussions on StackOverflow fix similar issue by adding custom header onto the request like:
.setHeader("User-Agent", "Mozilla/5.0") (source)

I already checked this discussion about header on Coil3 but I cannot find the way to add header on ImageRequest (neither NetworkHeaders class or httpHeaders field are available, maybe they are bound to OkHttp client).
Do you have any idea how to deal with it? (maybe creating a custom Ktor client including the header but it is not convenient)

[mew22]

Update:
About NetworkHeaders class or httpHeaders, I imported io.coil-kt.coil3:coil-network-ktor3 thinking it would bring core network dependency as well but it doesn't.
So I need to import explicitly io.coil-kt.coil3:coil-network-core.

But even after adding .setHeader("User-Agent", "Mozilla/5.0") I got error 403