Layered object (transparent layer) not rendering properly in PDF.JS

[Salmizar]

This is what it looks like in Acrobat

This is what the PDF looks like in PDF.JS

You can see that behind the ALWAYS OPEN letters, there is a missing transparant layer.

Here is a copy of the PDF

http://www.salmizar.com/files/pdfJSTransparancyIssue.pdf

I have confirmed the issue on v1.0.921

[Snuffleupagus]

Fixed by PR #13361