In the Google Merchant Center structured data documentation, it says that you should add structured data to the HTML source and that it "can't be generated after a page has been loaded using ...

See how Chewy, Harrods, Under Armour, and more brands handle rendering, navigation, structured data, and scripts without ...

14 months ago, Google updated its documentation around its shopping related structured data warning not to generate your structured data dynamically through JavaScript. Yesterday, at the Search ...