Code 302 (Found after redirect) results in UnknownError + No chance to get header and body of the response.

[szsoftware]

NetworkResponseAdapter/src/main/kotlin/com/haroldadmin/cnradapter/ResponseHandler.kt

Line 37 in 76c3ae4

return if (response.isSuccessful) {

This is a dependent issue to:
square/okhttp#6456

Workaround: ResonseCodeInterceptor(302, 200)

/**
 * @author szsoftware
 */
class ResponseCodeInterceptor(private val from: Int, private val to: Int) : Interceptor {
    @Throws(IOException::class)
    override fun intercept(chain: Interceptor.Chain): Response {
        val request = chain.request()
        val response = chain.proceed(request)
        val headers = response.headers
        val body = response.body

        val newCode = when(val oldCode = response.code) { from -> to else -> oldCode}

        return response
                .newBuilder()
                .code(newCode)
                .headers(headers)
                .body(body)
                .build()
    }
}

In my case I even only needed the headers, since the response body is empty (as expected).
In the responses header, in a Location "field" resides a token which was requested by a previous post request.
Due to sso mechanisms, a ridiculous 303 chain resulted in 302 at the end, what could finally not been processed by Retrofit + NetworkResponseAdapter.

[haroldadmin]

Thanks for reporting the issue. This seems like an extension of #23 where information about the response is lost in NetworkResponse.UnknownError. The plan is to add nullable fields to the UnknownError type containing information about the response, such as headers or the raw response itself.

I can not give you an ETA on this, unfortunately. I would be happy to accept external contributions, though.