QDomDocument::setContent() returns true despite XML being invalid

[Jits]

Good day!

Attempting to parse XML to DOM from string input using QDomDocument::setContent(). However, setContent() returns true regardless of the input and it's driving me nuts.

Text is entered into QTextEdit GUI and then (theoretically) converted to XML in the following function:

void Class::getXML()
{
    domDoc->clear();
    //Converts text edit content to HTML and parses to DOM doc
    if(!domDoc->setContent(textEdit->toHtml()))    {
        QMessageBox::information(this,"Error","XML invalid");
    } else  {
        QMessageBox::information(this,"Success",domDoc->toString(4));   //xxxTESTINGxxx
    }
}

void Class::getXML()
{
    domDoc->clear();
    //Converts text edit content to HTML and parses to DOM doc
    if(!domDoc->setContent(textEdit->toHtml()))    {
        QMessageBox::information(this,"Error","XML invalid");
    } else  {
        QMessageBox::information(this,"Success",domDoc->toString(4));   //xxxTESTINGxxx
    }
}

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I understand setContent() is supposed to validate the input? Any ideas?

Thanks!