With Spotify for Safari you don't need to copy and paste songs or artists from websites into Spotify anymore. When you see a song or an artist, just right click and choose "Open track in Spotify" or "Open artist in Spotify" and it'll take you directly to the item in Spotify.
The extension also let you view information about tracks (see image to the left) when you click "Show track info" and it even provides basic track search functionality – everything in a slick interface.
"ReferenceError: Static value property defined with NULL getProperty callback" will be
The consequence is that the text selection get the value of
undefined, which makes the track and artist redirect/lookup
incorrect (the extension searches for a track with the name "Undefined").
Try reloading the page once or twice, and the error should go away... for this time. I'm researching the error message right now, but it's pretty rare. I've filed a bug report to Apple about it, and would also appreciate any tips about how to solve it. Code can be provided.
This product uses a SPOTIFY API but is not endorsed, certified or otherwise approved in any way by Spotify. Spotify is the registered trade mark of the Spotify Group.