ciphers.

When negotiating a connection to an HTTPS server, OkHttp needs to know which [TLS versions](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-tls-version/) and [cipher suites](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-cipher-suite/) to offer. A client that wants to maximize connectivity would include obsolete TLS versions and weak-by-design cipher suites. A strict client that wants to maximize security would be limited to only the latest TLS version and strongest cipher suites....

site_name: OkHttp
site_url: https://square.github.io/okhttp/
repo_name: OkHttp
repo_url: https://github.com/square/okhttp
site_description: "Square’s meticulous HTTP client for the JVM, Android, and GraalVM"
site_author: Square, Inc.
remote_branch: gh-pages
edit_uri: ""

copyright: 'Copyright © 2022 Block, Inc.'

theme:
  name: 'material'
  favicon: assets/images/icon-square.png
  logo: assets/images/icon-square.png
  palette:

 * limitations under the License.
 */
package okhttp3

import okio.IOException

/**
 * Protocols that OkHttp implements for [ALPN][ietf_alpn] selection.
 *
 * ## Protocol vs Scheme
 *
 * Despite its name, [java.net.URL.getProtocol] returns the [scheme][java.net.URI.getScheme] (http,
 * https, etc.) of the URL, not the protocol (http/1.1, spdy/3.1, etc.). OkHttp uses the word

    .build();

Request request = new Request.Builder()
    .url("http://www.publicobject.com/helloworld.txt")
    .header("User-Agent", "OkHttp Example")
    .build();

Response response = client.newCall(request).execute();
response.body().close();
```

    )
  }

  if (androidBuild) {
    sourceSets["androidTest"].java.srcDirs(
      "../okhttp-brotli/src/test/java",
      "../okhttp-dnsoverhttps/src/test/java",
      "../okhttp-logging-interceptor/src/test/java",
      "../okhttp-sse/src/test/java"
    )
  }

  compileOptions {
    targetCompatibility(JavaVersion.VERSION_11)
    sourceCompatibility(JavaVersion.VERSION_11)

# Module okhttp-tls

```java
logging.redactHeader("Authorization");
logging.redactHeader("Cookie");
```

Download
--------

```kotlin
implementation("com.squareup.okhttp3:logging-interceptor:5.3.0")
```

    X-Android-Received-Millis is now OkHttp-Received-Millis
    X-Android-Response-Source is now OkHttp-Response-Source
    X-Android-Selected-Transport is now OkHttp-Selected-Transport
    ```
 *  Improve cache invalidation for POST-like requests.
 *  Bring MockWebServer into OkHttp and teach it SPDY.


## Version 1.1.1

_2013-06-23_

Download
--------

```kotlin
implementation("com.squareup.okhttp3:okhttp-tls:5.3.0")
```

 [held_certificate]: https://square.github.io/okhttp/5.x/okhttp-tls/okhttp3.tls/-held-certificate/
 [held_certificate_builder]: https://square.github.io/okhttp/5.x/okhttp-tls/okhttp3.tls/-held-certificate/-builder/
 [handshake_certificates]: https://square.github.io/okhttp/5.x/okhttp-tls/okhttp3.tls/-handshake-certificates/

OkHttp Testing Support
======================

This module offers utilities and support for testing OkHttp itself. It's not intended for use by