https://github.com/ptrwtts/kitchensink

function getCurrentArtist() {
var playerTrackInfo = sp.trackPlayer.getNowPlayingTrack();
if (playerTrackInfo == null) {
return null;
} else {
return track.album.artist;
}
}”

In which file do I post that and where? Thanks.

Alex says in post #31 down below:

“When I was building the app, I initially got tons of cancelled requests to the server. You need to add the url to the RequiredPermissions in the manifest and *restart* your Spotify client.”

Restarted – voîlà!

I have tried the following to do jquery calls:
$.get(url, callback(), ‘jsonp’);

And the following on the PHP backend:
echo $_GET['callback'] . ‘(‘.json_encode($songs).’)';

Works well in a regular Chrome browser, but in Spotify I get the dreaded “canceled” status…

I am one of the guys that made Mood Knobs, so here’s my first experience with the platform.

When I was building the app, I initially got tons of cancelled requests to the server. You need to add the url to the RequiredPermissions in the manifest and *restart* your Spotify client. If that doesn’t work, make sure that your manifest is correct. Spotify will silently ignore any wrong bits in the manifest and will not give you a warning – we’ve made that point to the Spotify developers during Music Hack Day.

Also, many servers might not answer your requests – that happens because Spotify uses its own protocol (sp://) and many servers are configured to answer only on http or https origins.

As a last point, sometimes the webkit inspector will show your requests in red, saying ‘cancelled’ but you actually get a response back. This seems like a bug which surprised the Spotify guys.

i cloned mood-knobs. From the debugger’s network tab. it seems the app trying multiple times to be able to talk to the server.