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Ktor HttpClient (native/curl): json deserialization doesn't work when using a proxy

See original GitHub issue

Ktor Version and Engine Used (client or server and name)

plugins {
    id 'org.jetbrains.kotlin.multiplatform' version '1.3.61'
    id 'org.jetbrains.kotlin.plugin.serialization' version '1.3.61'
}

...

        commonMain {
            dependencies {
                implementation kotlin('stdlib-common')
                implementation "org.jetbrains.kotlinx:kotlinx-io:0.1.16"
                implementation "io.ktor:ktor-client-core:1.3.0-rc2"
                implementation "io.ktor:ktor-client-json:1.3.0-rc2"
                implementation "io.ktor:ktor-client-serialization:1.3.0-rc2"
                implementation("io.ktor:ktor-client-logging:1.3.0-rc2")
            }
        }

...

        macosMain {
            dependencies {
                implementation "org.jetbrains.kotlinx:kotlinx-io-native:0.1.16"
                implementation "io.ktor:ktor-client-serialization-native:1.3.0-rc2"
                implementation "io.ktor:ktor-client-json-native:1.3.0-rc2"
                implementation "io.ktor:ktor-client-curl:1.3.0-rc2"
                implementation("io.ktor:ktor-client-logging-native:1.3.0-rc2")
            }
        }

Describe the bug When using a proxy (

engine {
    proxy = ProxyBuilder.http(URLBuilder().apply {
        host = "localhost"
        port = 8888
    }.build())
}

), on the JVM, everything works fine.

But on native, serialization breaks, I get

Uncaught Kotlin exception: io.ktor.client.call.NoTransformationFoundException: No transformation found: class io.ktor.utils.io.ByteChannelNative -> class org.jraf.klibqonto.internal.api.model.organizations.ApiOrganizationEnvelope

To Reproduce Steps to reproduce the behavior: Use Ktor HttpClient with json serialization on native (in my case, MacOS) and configure a proxy, and run it. The above exception is thrown.

Expected behavior Serialization should work with a proxy.