Mobile site pausing iPhone sound

I’ve experienced this bug on my iPhone 5 and iPhone 6, both running iOS 8. This also only happens on ROBLOX, no other sites have this effect.

Whenever I go to a page on ROBLOX’s mobile site, it pauses the music playing on my phone.

Yeah this has been around for ages; one of the reasons I don’t use the Roblox website on mobile much.

I assumed it was some iOS 8 Beta thing, but then I got my new phone and realized it was still happening on ROBLOX alone.