HtmlUnit failing on invalid javascript

Opened a [question at StackOverflow](https://stackoverflow.com/questions/57273186/htmlunit-failing-on-invalid-javascript-can-it-be-corrected-on-client), opening issue here as per your suggestion.

I need to load the Discord login page but am failing on javascript exceptions.

Running Java 11 on Eclipse 2019-06 with HtmlUnit 2.35

My java code:

```java
webClient = new WebClient();
webClient.getOptions().setDownloadImages(false);
webClient.getOptions().setCssEnabled(false);
webClient.getOptions().setJavaScriptEnabled(true);
webClient.getOptions().setHistorySizeLimit(5);
webClient.getOptions().setMaxInMemory(524288000);
webClient.getOptions().setThrowExceptionOnScriptError(false);
webClient.getOptions().setThrowExceptionOnFailingStatusCode(false);

webClient.getPage("https://discordapp.com/login");
```

The full log:

```java
Jul 30, 2019 3:30:39 PM com.gargoylesoftware.htmlunit.html.HtmlLink onAllChildrenAddedToPage
WARNING: Link type 'chrome-webstore-item' not supported.
Jul 30, 2019 3:30:39 PM com.gargoylesoftware.htmlunit.html.HtmlLink onAllChildrenAddedToPage
WARNING: Link type 'stylesheet' not supported.
Jul 30, 2019 3:30:39 PM com.gargoylesoftware.htmlunit.html.HtmlLink onAllChildrenAddedToPage
WARNING: Link type 'icon' not supported.
Jul 30, 2019 3:30:42 PM com.gargoylesoftware.htmlunit.javascript.DefaultJavaScriptErrorListener scriptException
SEVERE: Error during JavaScript execution
======= EXCEPTION START ========
EcmaError: lineNumber=[49] column=[0] lineSource=[<no source>] name=[TypeError] sourceName=[https://discordapp.com/assets/0765c293b8e5eac16193.js] message=[TypeError: Cannot find function setPrototypeOf in object function Object() { [native code] }. (https://discordapp.com/assets/0765c293b8e5eac16193.js#49)]
com.gargoylesoftware.htmlunit.ScriptException: TypeError: Cannot find function setPrototypeOf in object function Object() { [native code] }. (https://discordapp.com/assets/0765c293b8e5eac16193.js#49)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:885)
	at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:617)
	at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:534)
	at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.callSecured(HtmlUnitContextFactory.java:336)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:765)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:741)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:104)
	at com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:997)
	at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:373)
	at com.gargoylesoftware.htmlunit.html.HtmlScript$2.execute(HtmlScript.java:247)
	at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:268)
	at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:798)
	at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
	at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:754)
	at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1175)
	at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1115)
	at net.sourceforge.htmlunit.cyberneko.filters.DefaultFilter.endElement(DefaultFilter.java:219)
	at net.sourceforge.htmlunit.cyberneko.filters.NamespaceBinder.endElement(NamespaceBinder.java:303)
	at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:3126)
	at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2075)
	at net.sourceforge.htmlunit.cyberneko.HTMLScanner.scanDocument(HTMLScanner.java:922)
	at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:438)
	at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:389)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.parse(HTMLParser.java:997)
	at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:252)
	at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:196)
	at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:268)
	at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:159)
	at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:531)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:398)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:315)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:466)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:448)
	at discordBot.DiscordWatcher.homePage(DiscordWatcher.java:33)
	at discordBot.MainForDiscordWatcher.main(MainForDiscordWatcher.java:8)
Caused by: net.sourceforge.htmlunit.corejs.javascript.EcmaError: TypeError: Cannot find function setPrototypeOf in object function Object() { [native code] }. (https://discordapp.com/assets/0765c293b8e5eac16193.js#49)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:4334)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:4312)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError(ScriptRuntime.java:4345)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError2(ScriptRuntime.java:4364)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.notFunctionError(ScriptRuntime.java:4440)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getPropFunctionAndThisHelper(ScriptRuntime.java:2612)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getPropFunctionAndThis(ScriptRuntime.java:2594)
	at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1520)
	at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:1010)
	at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:111)
	at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:424)
	at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:322)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3628)
	at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:123)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$2.doRun(JavaScriptEngine.java:756)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:870)
	... 35 more
Enclosed exception: 
net.sourceforge.htmlunit.corejs.javascript.EcmaError: TypeError: Cannot find function setPrototypeOf in object function Object() { [native code] }. (https://discordapp.com/assets/0765c293b8e5eac16193.js#49)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:4334)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.constructError(ScriptRuntime.java:4312)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError(ScriptRuntime.java:4345)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.typeError2(ScriptRuntime.java:4364)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.notFunctionError(ScriptRuntime.java:4440)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getPropFunctionAndThisHelper(ScriptRuntime.java:2612)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.getPropFunctionAndThis(ScriptRuntime.java:2594)
	at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1520)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:49)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:49)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:49)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:1)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:45)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:45)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:9)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:9)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:20)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:49)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:45)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:49)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:49)
	at script.r(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script.d(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script.c(https://discordapp.com/assets/e4c71e4c5b1f4c2b4d17.js:1)
	at script(https://discordapp.com/assets/0765c293b8e5eac16193.js:1)
	at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:1010)
	at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:111)
	at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:424)
	at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:322)
	at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3628)
	at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:123)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$2.doRun(JavaScriptEngine.java:756)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:870)
	at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:617)
	at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:534)
	at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.callSecured(HtmlUnitContextFactory.java:336)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:765)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:741)
	at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:104)
	at com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:997)
	at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:373)
	at com.gargoylesoftware.htmlunit.html.HtmlScript$2.execute(HtmlScript.java:247)
	at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:268)
	at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:798)
	at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
	at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.endElement(HTMLParser.java:754)
	at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.callEndElement(HTMLTagBalancer.java:1175)
	at net.sourceforge.htmlunit.cyberneko.HTMLTagBalancer.endElement(HTMLTagBalancer.java:1115)
	at net.sourceforge.htmlunit.cyberneko.filters.DefaultFilter.endElement(DefaultFilter.java:219)
	at net.sourceforge.htmlunit.cyberneko.filters.NamespaceBinder.endElement(NamespaceBinder.java:303)
	at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scanEndElement(HTMLScanner.java:3126)
	at net.sourceforge.htmlunit.cyberneko.HTMLScanner$ContentScanner.scan(HTMLScanner.java:2075)
	at net.sourceforge.htmlunit.cyberneko.HTMLScanner.scanDocument(HTMLScanner.java:922)
	at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:438)
	at net.sourceforge.htmlunit.cyberneko.HTMLConfiguration.parse(HTMLConfiguration.java:389)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.parse(HTMLParser.java:997)
	at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:252)
	at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:196)
	at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:268)
	at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:159)
	at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:531)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:398)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:315)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:466)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:448)
	at discordBot.DiscordWatcher.homePage(DiscordWatcher.java:33)
	at discordBot.MainForDiscordWatcher.main(MainForDiscordWatcher.java:8)
======= EXCEPTION END ========
```





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