Fixed illegal usage of RawHeader

Author: Johannes Duesing

app/utils/CommonHelper.scala

@@ -15,8 +15,9 @@
 // limitations under the License.
 package utils
 
-import akka.http.scaladsl.model.headers.RawHeader
+import akka.http.scaladsl.model.headers.{Host, RawHeader}
 import akka.http.scaladsl.model.{HttpMethod, HttpRequest}
+
 import scala.collection.immutable.Seq
 
 object CommonHelper {
@@ -40,7 +41,7 @@ object CommonHelper {
         val traefikHost = configuration.webApiInstance.traefikConfiguration.get.proxyUri
         val apiHostName = configuration.webApiInstance.traefikConfiguration.get.hostName
         //We are outside docker and target is inside -> Need to call traefik
-        HttpRequest(method, addHttpProtocolIfNotExist(traefikHost) + path, Seq(RawHeader("Host", apiHostName)))
+        HttpRequest(method, addHttpProtocolIfNotExist(traefikHost) + path, Seq(Host(apiHostName)))
       } else {
         HttpRequest(method, addHttpProtocolIfNotExist(configuration.webApiUri) + path)
       }