MetaData not showing

Hello there, 
I followed this instruction https://www.muses.org/faq/26:How-can-I-display-metadata-artist-and-track-name-information-with-Muses.html to add metadata. 
But the muses player does not showing the metadata. 
'metadataMode':'shoutcast', I have added this line. 
any idea ? why it's not showing ?