selenium: [🐛 Bug]: Unable to establish websocket connection to http://x.x.x.x:4444/session/${session}/se/cdp

What happened?

My objective is: to retrieve information in a xhr response body, sent by a submitted filled in form

My approach is: to use DevTools.

1. locally, my approach is working
2. remotely, my approach isn’t working indeed i have this exception 14:29:12 org.openqa.selenium.remote.http.ConnectionFailedException: 14:29:12 Unable to establish websocket connection to http://x.x.x.x:4444/session/${session}/se/cdp 14:29:12 Build info: version: ‘4.0.0’, revision: ‘3a21814679’ 14:29:12 System info: host: ‘c54d6a2a855f’, ip: ‘10.0.5.6’, os.name: ‘Linux’, os.arch: ‘amd64’, os.version: ‘3.10.0-1160.45.1.el7.x86_64’, java.version: ‘11.0.12’ 14:29:12 Driver info: driver.version: unknown

How can we reproduce the issue?

**DevTools**
Code to use DevTools
-----------------------
        WebDriver augmentedDriver= new Augmenter().augment(WebDriverRunner.getWebDriver());
        DevTools devTools = ((ChromeDriver) augmentedDriver).getDevTools();
        devTools.createSession();
        devTools.send(Network.enable(Optional.of(100000000), Optional.empty(), Optional.empty()));
        final String[] textFromResponseBody= new String[1];
        devTools.addListener(Network.responseReceived(), responseReceived -> {
            if (responseReceived.getResponse()
                                .getUrl()
                                .contains(PATH_CONTEXT)) {
                textFromResponseBody[0] = devTools.send(Network.getResponseBody(responseReceived.getRequestId()))
                                                           .getBody();
            }
        });

after the filling in the form
-----------------------------
        log.info("clickOnSubmit " + SUBMIT_BUTTON);
        SUBMIT_BUTTON.should(enabled, visible)
                     .click();

confirmation of extracting the responseBody
-------------------------------------------
         log.info("Work request ID : {}", textFromResponseBody[0]);

**NetworkInterceptor**
        final String[] textFromResponseBody= new String[1];
        NetworkInterceptor interceptor = new NetworkInterceptor(
                (((ChromeDriver)new Augmenter().augment(WebDriverRunner.getWebDriver()))),
                (Filter) next -> req -> {
                    HttpResponse res = next.execute(req);
                    if ( req.getUri().contains(PATH_CONTEXT)) {
                        log.info(res.getContentString());
                        textFromResponseBody[0] = res.getContentString();
                    }
                    return res;
                }
        );

Relevant log output

14:29:11  Dec 07, 2021 1:28:54 PM org.openqa.selenium.devtools.CdpVersionFinder findNearestMatch
14:29:11  INFO: Found exact CDP implementation for version 95
14:29:11  Dec 07, 2021 1:29:04 PM org.openqa.selenium.remote.http.netty.NettyWebSocket lambda$new$0
14:29:11  WARNING: connection timed out: /x.x.x.x:4444
14:29:11  java.net.ConnectException: connection timed out: /x.x.x.x:4444
14:29:11  	at org.asynchttpclient.netty.channel.NettyConnectListener.onFailure(NettyConnectListener.java:179)
14:29:11  	at org.asynchttpclient.netty.channel.NettyChannelConnector$1.onFailure(NettyChannelConnector.java:108)
14:29:11  	at org.asynchttpclient.netty.SimpleChannelFutureListener.operationComplete(SimpleChannelFutureListener.java:28)
14:29:11  	at org.asynchttpclient.netty.SimpleChannelFutureListener.operationComplete(SimpleChannelFutureListener.java:20)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:578)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:571)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:550)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:491)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:616)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:609)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117)
14:29:11  	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe$1.run(AbstractNioChannel.java:262)
14:29:11  	at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98)
14:29:11  	at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:170)
14:29:11  	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
14:29:11  	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469)
14:29:11  	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
14:29:11  	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
14:29:11  	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
14:29:11  	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
14:29:11  	at java.base/java.lang.Thread.run(Thread.java:866)
14:29:11  Caused by: io.netty.channel.ConnectTimeoutException: connection timed out: /10.42.2.196:4444
14:29:11  	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe$1.run(AbstractNioChannel.java:261)
14:29:11  	... 9 more
14:29:11  
14:29:11  Dec 07, 2021 1:29:04 PM org.openqa.selenium.remote.http.WebSocket$Listener onError
14:29:11  WARNING: connection timed out: /x.x.x.x:4444
14:29:11  java.net.ConnectException: connection timed out: /x.x.x.x:4444
14:29:11  	at org.asynchttpclient.netty.channel.NettyConnectListener.onFailure(NettyConnectListener.java:179)
14:29:11  	at org.asynchttpclient.netty.channel.NettyChannelConnector$1.onFailure(NettyChannelConnector.java:108)
14:29:11  	at org.asynchttpclient.netty.SimpleChannelFutureListener.operationComplete(SimpleChannelFutureListener.java:28)
14:29:11  	at org.asynchttpclient.netty.SimpleChannelFutureListener.operationComplete(SimpleChannelFutureListener.java:20)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:578)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:571)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:550)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:491)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:616)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:609)
14:29:11  	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117)
14:29:11  	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe$1.run(AbstractNioChannel.java:262)
14:29:11  	at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98)
14:29:11  	at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:170)
14:29:11  	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
14:29:11  	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469)
14:29:11  	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
14:29:11  	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
14:29:11  	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
14:29:11  	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
14:29:11  	at java.base/java.lang.Thread.run(Thread.java:866)
14:29:11  Caused by: io.netty.channel.ConnectTimeoutException: connection timed out: /10.42.2.196:4444
14:29:11  	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe$1.run(AbstractNioChannel.java:261)
14:29:11  	... 9 more
14:29:11  
...
...
14:29:12  [ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 51.575 s <<< FAILURE! - in TestSuite
14:29:12  [ERROR] ...  Time elapsed: 46.934 s  <<< FAILURE!
14:29:12  org.openqa.selenium.remote.http.ConnectionFailedException: 
14:29:12  Unable to establish websocket connection to http://x.x.x.x:4444/session/${session}/se/cdp
14:29:12  Build info: version: '4.0.0', revision: '3a21814679'
14:29:12  System info: host: 'c54d6a2a855f', ip: '10.0.5.6', os.name: 'Linux', os.arch: 'amd64', os.version: '3.10.0-1160.45.1.el7.x86_64', java.version: '11.0.12'
14:29:12  Driver info: driver.version: unknown
14:29:12  	at ...
14:29:12  
14:29:12  [INFO]

Operating System

Docker Debian GNU/Linux 11 (bullseye)

Selenium version

openjdk 11.0.13 2021-10-19

What are the browser(s) and version(s) where you see this issue?

Chrome 95

What are the browser driver(s) and version(s) where you see this issue?

ChromeDriver 95 via Selenide / WebDriverManager

Are you using Selenium Grid?

Selenium Grid 4.1.0 (revision aea69daa1c)

my comments

i see we want to connect to a websocket but the protocol is http …