Malware injected into some pages

[Feuermurmel]

Some pages, e.g. https://redux-form.com/8.1.0/docs/gettingstarted.md/ reference some JavaScript files which inject malware into the page:

<script type="text/javascript" src="https://cdn2.codefund.app/assets/px.js?ch=1"></script>
<script type="text/javascript" src="https://cdn2.codefund.app/assets/px.js?ch=2"></script>

This is the injected script:

if (typeof _popwnd == 'undefined') {
    var _popwnd = -1;
    function _popwnd_open(){
        if (_popwnd!=-1) return;
        _popwnd = window.open('http://iyfnz.com/?dn=codefund.app&pid=9PO755G95', '_blank', '');
        _popwnd.blur();
        window.focus();
    }
};
window.addEventListener('click', _popwnd_open);

Ok, "malware" is maybe a strong term, but getting another popup on every click reminds me of Windows 98 PCs without anti-virus.