webClient = new WebClient(BrowserVersion.CHROME);
webClient.getOptions().setThrowExceptionOnScriptError(false);
webClient.getOptions().setAppletEnabled(true);
webClient.setPrintHandler(new MyPrintHandler());
webClient.waitForBackgroundJavaScript(5000);
webClient.waitForBackgroundJavaScriptStartingBefore(5000);
// this line throw exception
page1.executeJavaScript("html2canvas(document.body).then(function(canvas) {\n" +
	"\n" +
	"console.log(2222)\n" +
	"\n" +
	"});");

[WARN ] 2023-06-05 17:28:56,893 method:org.htmlunit.javascript.host.html.HTMLDocument.close(HTMLDocument.java:518)
close() called when document is not open.