Audio gets as downloadable object instead of playing

Hi,

A strange phenomenon, I have come across in SL.

We have our own LMS where people access online courses.

Today one of my user has reported a strange thing, where the audio which I have used in the SL course is being seen as a downloadable object instead of playing it in the player.

Attaching a screenshot, of the error.

Is there any browser settings which I need to check or Is there any thing I need to work on in SL while creating courses ?

Would appreciate any help on this.

Thanks.