"Read Aloud" not working for PDF files opened in Microsoft Edge html frame

Question

Microsoft Edge has "Read Aloud" functionality for PDF files opened within the browser. However, this functionality does not work if the PDF file is opened within a frame in the browser.

Anybody found a solution for this?

index.html:

...
<frame name="menu" src="content.html" marginheight="0" marginwidth="0" scrolling="auto" noresize>
...

content.html:

<a href="http://abacus.gene.ucl.ac.uk/software/CommandLine.Unix.pdf" target="lecturesWindow"> link </a>
</body>

Answer 1

I reproduced this issue, and also reproduced it with a local PDF. Apparently, Read Aloud feature is currently not supported on PDFs within <frame>/<iframe>. I suggest sending feedback to the Dev Team using Alt+Shift+I to request this feature. For now, you can display PDFs outside a frame if possible to use this feature.