iFraming External PDF Files (Currently empty element loaded)

Current Problem: iFraming external PDFs (with embed src file link) is Unavailable

While trying to embedding/iframing PDF files into Obsidian, it shows nothing but a blank frame in the preview mode - a blank element in the iframe html elements.

The following is the inspection of elements in dev mode.

iframe code used for example

<iframe src="https://d30b7srod7pe7m.cloudfront.net/uploads/2020/08/Figure_Managing-acute-asthma-in-adults_web.pdf"></iframe>

Proposed Solution

Hoping Obsidian could be as able to render out the elements in PDF files, just as web browsers does in comparison: