I need to append a div element that contains a p and an h3 element after a component tag in Angular. <product-list> When put it inside window.onLoad(), it works only when I reload and refresh the page. That approach isn't used in single page app. How can do that? I don't have access to the TypeScript code nor the the HTML template. I can only add a custom script. I expect that Tag will display when navigating to product list. Continue reading...