asahikawa.hokkaido.jp asaka.saitama.jp asakawa.fukushima.jp asakuchi.okayama.jp asaminami.hiroshima.jp ascoli-piceno.it ascolipiceno.it asda aseral.no ashgabad.su ashibetsu.hokkaido.jp ashikaga.tochigi.jp ashiya.fukuoka.jp ashiya.hyogo.jp ashoro.hokkaido.jp asia asker.no askim.no askoy.no askvoll.no askøy.no asmatart.museum asn.au asn.lv asnes.no aso.kumamoto.jp ass.km assabu.hokkaido.jp assassination.museum assisi.museum assn.lk asso.ci asso.dz asso.eu.org asso.fr asso.gp asso.ht asso.km asso.mc asso.nc asso.re...

alvdal.no
amli.no
åmli.no
amot.no
åmot.no
andebu.no
andoy.no
andøy.no
andasuolo.no
ardal.no
årdal.no
aremark.no
arendal.no
ås.no
aseral.no
åseral.no
asker.no
askim.no
askvoll.no
askoy.no
askøy.no
asnes.no
åsnes.no
audnedaln.no
aukra.no
aure.no
aurland.no
aurskog-holand.no
aurskog-høland.no
austevoll.no
austrheim.no

    if (stream != null) return

    val hasRequestBody = request.body != null
    val requestHeaders = http2HeadersList(request)
    stream = http2Connection.newStream(requestHeaders, hasRequestBody)
    // We may have been asked to cancel while creating the new stream and sending the request
    // headers, but there was still no stream to close.
    if (canceled) {
      stream!!.closeLater(ErrorCode.CANCEL)
      throw IOException("Canceled")
    }

      }
    ```

### Handling authentication ([.kt][AuthenticateKotlin], [.java][AuthenticateJava])

OkHttp can automatically retry unauthenticated requests. When a response is `401 Not Authorized`, an `Authenticator` is asked to supply credentials. Implementations should build a new request that includes the missing credentials. If no credentials are available, return null to skip the retry.

   developers and others in the free software community to coordinate our efforts.

 * **Be pragmatic**: Questions are encouraged and should be asked early in the process to avoid
   problems later. Be thoughtful and considerate when seeking out the appropriate forum for your
   questions. Those who are asked should be responsive and helpful.

 * **Step down considerately**: Members of every project come and go. When somebody leaves or

## Version 3.12.0

_2018-11-16_

 *  **OkHttp now supports TLS 1.3.** This requires either Conscrypt or Java 11+.

 *  **Proxy authenticators are now asked for preemptive authentication.** OkHttp will now request
    authentication credentials before creating TLS tunnels through HTTP proxies (HTTP `CONNECT`).