Will search engines index the content of PDF loaded with XHR by PDF.js?

Question

I'm using the PDF.js viewer. After the page loads, it executes an XHR to get the PDF.

Will the contents of the PDF be indexed by search engines like Google?

Answer 1

Here is their demo: https://mozilla.github.io/pdf.js/web/viewer.html

The contents of the demo are indexed in Google: