Some things don't work with the new wordpress

I GAVE THIS 5 STARS, BUT IT’S ONLY only showing up as a one star review…. maybe the other 4 will appear later.
After the latest WP update, I can’t use anything popup anymore. I use it to put audio on a site, mp3’s in a pop up using the basic html audio code. I was putting this in the pop up
<audio controls>
<source src=”horse.ogg” type=”audio/ogg”>
<source src=”horse.mp3″ type=”audio/mpeg”>
Your browser does not support the audio tag.
</audio>
But the new WP update does not allow <source>, in any of the pop up addons, it just wipes it out so after you save the above code “word press” changes it to this:
<audio controls>

Your browser does not support the audio element.
</audio>

I’ve tried multiple browsers thinking it might have been a firefox update that changed this, but nope, it does the same on all browsers.
I also tried other pop up addons and it’s the same.

This was my review:
[This is exactly was I was looking for. I wanted to have links where you “click” to pop up information. I have a personal page that I listed all the concerts I’ve been to then when you click on the band’s name, it pops up a page then describes the show, with all features of html.
what I like is that it’s easy to use, didn’t take much to figure it out. I did not need anything more than this and I didn’t want to spend hours trying to figure it out. This is something I would have paid a little $$ for (not monthly like some others do, that’s just wrong), and I’m cheap.]