Key is visible in the page source code

Hello. Thanks for a nice plugin! I shared a document with a link, used the shortcode to embed it and took a peek at the WordPress page where it’s embedded. There is a table id=”igsv …” -and if I am not mistaken followed by the key that is found in the link? I want to share a non-public document on a WordPress installation for members only, thus making it quite secure. But is that id really needed and is it possible to hide the key? I am sure you understand what I’m getting at. Perhaps I am overly cautious? Best regards!

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