[Type] DOMString [Nullable] ✘ [Optional] ✔ [Description] This argument contains a URI identifying the specific media fragment for which the metadata is requested. The URI must conform to the URI for Media Fragment [MEDIA-FRAGMENTS] specification. This parameter is optional. [Parameter] 
fragment
p r o p e r t y N a m e s
s u c c e s s C a l l b a c k
e r r o r C a l l b a c k
f r a g m e n t
s o u r c e F o r m a t
l a n g u a g e