Gutenberg: Spotify Embed Failures for Playlists

[Addison-Stavlo]

Describe the bug
Trying to embed a playlist in the Spotify embed block does not seem to work:

However, song and album imbeds continue to work as expected.

There have been a handful of reports noted from dotcom in the last few days regarding this. I am also reproducing this error with my local Gutenberg docker environment on the current master branch.

There seem to have been some other intermittent Spotify embed issues in the recent past (#19604), but this specific outage for playlists specifically seems to be new.

To reproduce
Steps to reproduce the behavior:

1. Insert a Spotify embed block
2. Try to embed a playlist such as - https://open.spotify.com/playlist/37i9dQZF1E4yfsPkqIMfve?si=8FODsM8nTFaQUKWmsuyHbA
3. Verify it does not embed.

Expected behavior
The playlist to be embedded similarly as an album.

Editor version (please complete the following information):

• WordPress version: 5.4.1
• If the Gutenberg plugin is installed, which version is it? [e.g., 7.6]
  Reproduced with Gutenberg 8.0.0, 8.1.0-rc.1, and default/disabled.

Desktop (please complete the following information):

• OS: macOS 10.15.30
• Browser: Chrome
• Version: Version 81.0.4044.138 (Official Build) (64-bit)

[sirreal]

I believe this may be a problem on Spotify's end.

It was raised on a Spotify forum: https://community.spotify.com/t5/Spotify-for-Developers/Playlist-oembed-down-or-changed/m-p/4949867/highlight/true#M99 and I've commented there.

I've also reached out on Twitter: https://twitter.com/jonsurrell/status/1260608420396306432

Songs work fine: https://open.spotify.com/oembed?url=https://open.spotify.com/track/4uLU6hMCjMI75M1A2tKUQC?si=MKLA7hRCTTuhyiXhuqvXeA

Artists work fine: https://open.spotify.com/oembed?url=https://open.spotify.com/artist/6ykfXAed2KOLOMI3R0TZdz?si=K4zmepbrSB6lH9elPxN9tg

Playlists don't: https://open.spotify.com/oembed?url=https://open.spotify.com/playlist/37i9dQZF1DX1S1NduGwpsa?si=NFpoIkVtQMWYDlM-HGMPHg

[tbradsha]

Note that the [spotify] Jetpack shortcode seems to embed Spotify playlists successfully despite the Spotify embed block not working.

[sirreal]

Note that the [spotify] Jetpack shortcode seems to embed Spotify playlists successfully despite the Spotify embed block not working.

Thanks 👍

Jetpack doesn't rely on oembed, but builds its own iframe source. It does demonstrate that playlists _should_ be embeddable.

[earnjam]

The code for handling oEmbed functionality is in core, so this would be better reported on Trac. There was a ticket opened there 8 days ago: https://core.trac.wordpress.org/ticket/50116

Unfortunately this is a problem on Spotify's end with their oEmbed endpoint, and not something we can really do anything about until/unless they fix it upstream. I'm going to close this since we're already tracking it on Trac and there aren't any actionable steps we can take here.