How to print a webpage with all click-to-expand contents?

问题

I'm using print-to-pdf option in headless chrome (or chromehtml2pdf) to print this page to PDF. It's unfortunate that this page has some click-to-expand contents. For example,

Here is when we click the triangle to open

To expand all of these hidden contents, we can click to the plus symbol at the top right side

I would like to ask if there is any way to print the webpage as well as click-to-expand contents. Thank you so much for your help!

来源：https://stackoverflow.com/questions/61900799/how-to-print-a-webpage-with-all-click-to-expand-contents