What is the best way to dedupe URLs with the same content?

For example, https://supabase.com/docs/reference/javascript/introduction https://supabase.com/docs/reference/javascript/installing which I get from /map (attached image) The reason I get the same content is because although the URL is different, it is actually the same page

JavaScript: Introduction | Supabase Docs

Supabase API reference for JavaScript: Introduction

JavaScript: Installing | Supabase Docs

Supabase API reference for JavaScript: Installing