Search returns jquery source

When I use the standard search on standard WP theme, I get javascript code:

———————–

jQuery(document).ready(function($) {
$(‘#wp_mep_2′).mediaelementplayer({
m:1

,features: [‘playpause’,’progress’,’current’,’duration’,’volume’,’tracks’,’fullscreen’]
});
});

blablah….

jQuery(document).ready(function($) {
$(‘#wp_mep_3′).mediaelementplayer({
m:1

,features: [‘playpause’,’progress’,’current’,’duration’,’volume’,’tracks’,’fullscreen’]
});
});

—————

What is going on ?

The code inserted is as follows:

[video src="https://<site URL>/wp-content/uploads/2011/05/Outro.wmv" width="300" height="240"]