Problems with "access the internet"

Hi,
I have tried the function "access the internet", but have encountered problems.
I have tried several web pages, with each one I get a (different) SaxParseException.

For example, the following call results in the exception:

Bluetooth.println(JSON.stringify({t:"http",url:"https://banglejs.com/reference",xpath:"/html/body/div/h2"}));

Does the call work for anyone? Is it possibly a problem with my phone?

Using the relevant lines from the BanglejsGadgetBridge project, I was able to recreate the error in a small sample project of my own.

InputSource inputXML = new InputSource(new StringReader(response));
XPath xPath = XPathFactory.newInstance().newXPath();
response = xPath.evaluate(xmlPath, inputXML);

Simple HTML/XML structures work, but complex web pages do not. I think the parser can't handle the embedded JavaScript. But I am not sure.

I searched for other solutions and tried Jsoup. For me it worked very well.

Document doc = Jsoup.parse(response);
response = doc.select(xmlPath).html();

A big disadvantage is that XPath cannot be used, but selector.

The question is, am I alone with this problem? Can someone help me to get the default implementation to work? Is an implementation with Jsoup possible, or is there something against it?