Playlists based on tags stopped working

[omelnyk1]

What happened:
A playlist created on tags stopped working and shows only first dashboard without switching.
What you expected to happen:
Playlist works like a charm 😄
How to reproduce it (as minimally and precisely as possible):

1. Create new playlist
2. Add dashboards using tags
3. Run playlist

Environment:

• Grafana version: 6.1.4 (fef1733)
• OS Grafana is installed on: CentOS 6.10
• User OS & Browser: MacOS Mojave 10.14.3, Safari/Firefox, Windows 10 IE

[omelnyk1]

@torkelo could you please have a look?
Thanks in advance.

[marefr]

Confirmed bug since Grafana v6.1.0. Thanks for the report

[jschill]

The JSON object returned from the playlist api has a Url param with an ending slash /.

grafana/pkg/api/playlist_play.go

Line 58 in e4f649e

Url: m.GetDashboardUrl(item.Uid, item.Slug),

(populateDashboardsByID does not return an ending slash. It is only populateDashboardsByTag)

When the client is comparing the returned Url param with the location in the state they are not equal and because of that the playlist is stopped.

grafana/public/app/features/playlist/playlist_srv.ts

Line 73 in e4f649e

if (state.location.path !== this.validPlaylistUrl) {