Removing leading slashes before routing requests

Global.scala

import play.api._
import play.api.mvc._

object Global extends GlobalSettings {

  case class RewrittenRequestHeader(val path: String, delegate: RequestHeader) extends RequestHeader {
    def id = delegate.id
    def tags = delegate.tags
    def uri = delegate.uri
    def method = delegate.method
    def version = delegate.version
    def queryString = delegate.queryString
    def remoteAddress = delegate.remoteAddress
    def headers = delegate.headers
  }

  override def onRouteRequest(header: RequestHeader): Option[Handler] = {
    val rewritten = if (header.path.startsWith("//")) {
      val newPath = header.path.substring(1)
      RewrittenRequestHeader(newPath, header)
    } else {
      header
    }
    super.onRouteRequest(rewritten)
  }

}