Add pages within embed block to sitemap?

Site URL: https://www.pestack.com/vendor-profiles

I use a Ajax-based third party application called Knack which I use to power a database platform with many pages. I host this content on my Squarespace page via an embed block. The problem is that Squarespace does not generate the hundreds of pages in this database platform within the sitemap, and Google is therefore not picking up any of these pages. All that the sitemap shows is the URL for the single page where the embed is. This is bad for SEO!

Is there some piece of code or approach I can use to get Squarespace to generate the pages within the sitemap? Any help or tips greatly appreciated!

Thanks

Hi,
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