Angular Prerendering延迟html页面加载，以便prerender加载Ajax

I'm using Angular I need to delay the complete output for my page output for bots to give the content time to load before the bot stops processing the HTML. My entire page will render and the prerendering service thinks the page is complete, but ajax is still loading the data. I just need to delay the content flush until the ajax load is completely done. Is there a good way in Angular to do this?I'm using Angular I need to delay the complete