I am trying to access <g> tag from SVG by class name (ads) and which is rendered using JavaScript into <object> tag of HTML.
SVG is rendered here
<object id="container2" type="type=" image/svg+xml"></object>
Using Javascript
player2 = lottie.loadAnimation({
            container: document.getElementById('container2'),
            renderer: 'svg',
            loop: false,
            autoplay: true,
            path: 'assets/mindmap2.json'
        });
But the issue is When this function called, it gets <g> but in the console, it shows the zero elements inside the HTMLCollection.
 window.addEventListener("load", () => {
        console.log(document.getElementsByClassName('ads'));
    });
Microsoft Edge Console Log