/**
     * Flags type
     */
    public static final int MsvAvFlags = 0x6;

    /**
     * Timestamp type
     */
    public static final int MsvAvTimestamp = 0x7;

    /**
     * Single host type
     */
    public static final int MsvAvSingleHost = 0x08;

    /**
     * Target name type
     */
    public static final int MsvAvTargetName = 0x09;

    /**
     * Channel bindings type

* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host" class="external-link" target="_blank">X-Forwarded-Host</a>

///

Nevertheless, as the **application server** doesn't know it is behind a trusted **proxy**, by default, it wouldn't trust those headers.

### Remotely Inspecting backend data

      .includeIPv6(includeIPv6)
      .resolvePrivateAddresses(true)
      .url(url)
      .post(post)
      .build()
  }

  companion object {
    private fun address(host: String) = InetAddress.getByName(host)
  }

    get() = codec.carrier as? RealConnection ?: error("no connection for CONNECT tunnels")

  internal val isCoalescedConnection: Boolean
    get() = finder.routePlanner.address.url.host != codec.carrier.route.address.url.host

  @Throws(IOException::class)
  fun writeRequestHeaders(request: Request) {
    try {
      eventListener.requestHeadersStart(call)
      codec.writeRequestHeaders(request)

        path: ~/go/pkg/mod
        key: ${{ runner.os }}-go-${{ matrix.go }}-${{ hashFiles('tests/go.mod') }}

    - name: Tests
      run: GITHUB_ACTION=true GORM_DIALECT=postgres GORM_DSN="user=gorm password=gorm dbname=gorm host=localhost port=9920 sslmode=disable TimeZone=Asia/Shanghai" ./tests/tests_all.sh

  sqlserver:
    strategy:
      matrix:
        go: ['1.23', '1.24']

http://%30%78%63%30%2e%30%32%35%30.01%2e  s:http p:/ h:0xc0.0250.01.
http://192.168.0.257

# Invalid escaping should trigger the regular host error handling.
http://%3g%78%63%30%2e%30%32%35%30%2E.01

# Something that isn't exactly an IP should get treated as a host and
# spaces escaped.
http://192.168.0.1\shello

# Fullwidth and escaped UTF-8 fullwidth should still be treated as IP.

            closeResources(httpRequest, responseData);
            throw new CrawlingAccessException("Unknown host(" + e.getMessage() + "): " + url, e);
        } catch (final NoRouteToHostException e) {
            closeResources(httpRequest, responseData);
            throw new CrawlingAccessException("No route to host(" + e.getMessage() + "): " + url, e);
        } catch (final ConnectException e) {

        append(request.url)
      } else {
        append(requestPath(request.url))
      }
      append(" HTTP/1.1")
    }

  /**
   * Returns true if the request line should contain the full URL with host and port (like "GET
   * http://android.com/foo HTTP/1.1") or only the path (like "GET /foo HTTP/1.1").
   */
  private fun includeAuthorityInRequestLine(
    request: Request,
    proxyType: Proxy.Type,

    val request =
      Request
        .Builder()
        .url("http://square.com/")
        .header("Connection", "upgrade")
        .header("Upgrade", "websocket")
        .header("Host", "square.com")
        .header("TE", "gzip")
        .build()
    val expected =
      headerEntries(
        ":method",
        "GET",
        ":path",
        "/",
        ":authority",