topic Web Playback SDK player.connect() never resolves in Development Mode — promise stays pending indefin in Spotify for Developers https://community.spotify.com/t5/Spotify-for-Developers/Web-Playback-SDK-player-connect-never-resolves-in-Development/m-p/7392190#M21082 <P><SPAN>I'm building a personal project using the Web Playback SDK. Since the February/March 2026 changes, </SPAN><CODE class="">player.connect()</CODE><SPAN> returns a promise that permanently stays pending. </SPAN><CODE class="">getOAuthToken</CODE><SPAN> is never called by the SDK. No error events fire — not </SPAN><CODE class="">authentication_error</CODE><SPAN>, not </SPAN><CODE class="">account_error</CODE><SPAN>, nothing.<BR /><BR />Confirmed:</SPAN></P><UL><LI><SPAN>Premium account (</SPAN><CODE class="">/v1/me</CODE><SPAN> returns </SPAN><CODE class="">product: premium</CODE><SPAN>) </SPAN></LI><LI><SPAN>Valid token with </SPAN><CODE class="">streaming</CODE><SPAN> scope </SPAN></LI><LI><SPAN>Running on </SPAN><CODE class=""><A href="http://localhost:8081" target="_blank" rel="noopener">http://localhost:8081</A></CODE><SPAN> (not 127.0.0.1) </SPAN></LI><LI><SPAN>Widevine DRM available </SPAN></LI><LI><SPAN>Web API + Web Playback SDK both checked in dashboard </SPAN></LI><LI><SPAN>Client ID: </SPAN><CODE class="">9faf83603ad841fb987f38e3845a171a</CODE></LI></UL><P><SPAN>Is the Web Playback SDK still functional in Development Mode? Or does it now require Extended Access?</SPAN></P> Tue, 31 Mar 2026 05:21:45 GMT tayloraucoin 2026-03-31T05:21:45Z Web Playback SDK player.connect() never resolves in Development Mode — promise stays pending indefin https://community.spotify.com/t5/Spotify-for-Developers/Web-Playback-SDK-player-connect-never-resolves-in-Development/m-p/7392190#M21082 <P><SPAN>I'm building a personal project using the Web Playback SDK. Since the February/March 2026 changes, </SPAN><CODE class="">player.connect()</CODE><SPAN> returns a promise that permanently stays pending. </SPAN><CODE class="">getOAuthToken</CODE><SPAN> is never called by the SDK. No error events fire — not </SPAN><CODE class="">authentication_error</CODE><SPAN>, not </SPAN><CODE class="">account_error</CODE><SPAN>, nothing.<BR /><BR />Confirmed:</SPAN></P><UL><LI><SPAN>Premium account (</SPAN><CODE class="">/v1/me</CODE><SPAN> returns </SPAN><CODE class="">product: premium</CODE><SPAN>) </SPAN></LI><LI><SPAN>Valid token with </SPAN><CODE class="">streaming</CODE><SPAN> scope </SPAN></LI><LI><SPAN>Running on </SPAN><CODE class=""><A href="http://localhost:8081" target="_blank" rel="noopener">http://localhost:8081</A></CODE><SPAN> (not 127.0.0.1) </SPAN></LI><LI><SPAN>Widevine DRM available </SPAN></LI><LI><SPAN>Web API + Web Playback SDK both checked in dashboard </SPAN></LI><LI><SPAN>Client ID: </SPAN><CODE class="">9faf83603ad841fb987f38e3845a171a</CODE></LI></UL><P><SPAN>Is the Web Playback SDK still functional in Development Mode? Or does it now require Extended Access?</SPAN></P> Tue, 31 Mar 2026 05:21:45 GMT https://community.spotify.com/t5/Spotify-for-Developers/Web-Playback-SDK-player-connect-never-resolves-in-Development/m-p/7392190#M21082 tayloraucoin 2026-03-31T05:21:45Z