[HtmlUnit] [htmlunit:bugs] #2019 Unwanted WebSocket Connection

[RBRi <rb...@us...>]

The only option from my point of view is to remove the class from the js-setup. But this is so far not supported (at least what i can see at the moment). If you still need this feature - please open an new issue on github.


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** [bugs:#2019] Unwanted WebSocket Connection**

**Status:** open
**Group:** 2.35.0
**Created:** Fri Jul 05, 2019 10:55 PM UTC by Ahsan Kazmi
**Last Updated:** Thu Jul 11, 2019 07:05 PM UTC
**Owner:** nobody


I tried searching for a solution but was unable to find how to prevent connection to a websocket. I only need to read html that is rendered through javascript, and I am able to do that fine. 

The following is my code:
            webClient = new WebClient(BrowserVersion.CHROME);
			webClient.getOptions().setUseInsecureSSL(true);
			webClient.getOptions().setJavaScriptEnabled(true);
			page = webClient.getPage(address);
			webClient.waitForBackgroundJavaScript(3000);
			List<DomElement> statusElementList = page.getByXPath("//span[contains(@class, 'state-title')]");
			String status = statusElementList.get(0).getFirstChild().toString();
           
The following is the stacktrace I am seeing:

 websocket error             info WebConsole.java  : 422 
2019-07-05 22:44:09 [UTC] [HttpClient@1433621164-98] INFO  c.g.htmlunit.WebConsole    websocket closed.            
 ERROR c.g.h.javascript.host.WebSocket      - [trueEDGE] Customer: qa-uss, Device:  connect error for url 'wss://192.168.44.202/statusd':              run WebSocket.java   : 179 

java.util.concurrent.ExecutionException: org.eclipse.jetty.websocket.api.UpgradeException: 400 Bad Request
	at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
	at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
	at com.gargoylesoftware.htmlunit.javascript.host.WebSocket$1.run(WebSocket.java:175)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.eclipse.jetty.websocket.api.UpgradeException: 400 Bad Request
	at org.eclipse.jetty.websocket.client.WebSocketUpgradeRequest.onComplete(WebSocketUpgradeRequest.java:520)
	at org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:193)
	at org.eclipse.jetty.client.ResponseNotifier.notifyComplete(ResponseNotifier.java:185)
	at org.eclipse.jetty.client.HttpReceiver.terminateResponse(HttpReceiver.java:459)
	at org.eclipse.jetty.client.HttpReceiver.responseSuccess(HttpReceiver.java:405)
	at org.eclipse.jetty.client.http.HttpReceiverOverHTTP.messageComplete(HttpReceiverOverHTTP.java:297)
	at org.eclipse.jetty.http.HttpParser.handleContentMessage(HttpParser.java:606)
	at org.eclipse.jetty.http.HttpParser.parseContent(HttpParser.java:1536)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:1384)
	at org.eclipse.jetty.client.http.HttpReceiverOverHTTP.parse(HttpReceiverOverHTTP.java:170)
	at org.eclipse.jetty.client.http.HttpReceiverOverHTTP.process(HttpReceiverOverHTTP.java:131)
	at org.eclipse.jetty.client.http.HttpReceiverOverHTTP.receive(HttpReceiverOverHTTP.java:70)
	at org.eclipse.jetty.client.http.HttpChannelOverHTTP.receive(HttpChannelOverHTTP.java:130)
	at org.eclipse.jetty.client.http.HttpConnectionOverHTTP.onFillable(HttpConnectionOverHTTP.java:116)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110)
	at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:289)
	at org.eclipse.jetty.io.ssl.SslConnection$3.succeeded(SslConnection.java:149)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
	at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128)
	at org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:199)
	... 3 common frames omitted



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