title_body: Can't download ebook from Amazon to my PC
upvoted_answer: After several hours of frustration and searching in internet (seriously, after like 3 hours), suddenly I remember the console. Hit F12 to open Chrome console and what a surprise: an error:
  Mixed Content: The site at 'https://www.amazon.es/' was loaded over a secure connection, but the file
  at '**HERE COMES THE DOWNLOAD URL**' was redirected through an insecure connection. 
  This file should be served over HTTPS. This download has been blocked. See 
  https://blog.chromium.org/2020/02/protecting-users-from-insecure.html for more details.
  
  I tried to change chrome settings to no avail, so I just copied the download URL and pasted it in a new tab. It downloaded the book without a problem.
  I don't really understand the problem, but yes, just copy/paste the URL and download your ebook.