JitSit Web API causes Black Screen for Many Users

Hi Everyone,

I have successfully integrated JitSi in my LMS and it seems doing fine for a year, the problem is that lately, many users are complaining about the black screen when they join the meeting. Running in Chrome doesn’t cause problem before but it is now, quick fix is by choosing another browser but it is tiresome to some users. Do you have any suggestions to resolve this issue?

Welcome to the forum.

What version of Jitsi are you running?

Looking at the JS file, I downloaded it last December 11, 2020.

Thank you for the welcoming me here.

You can check by running the following command:

dpkg -l | grep jitsi

But since you installed it in Dec '20, it’s safe to say it’s still running on Plan B, which has now been deprecated by Google. You need to update to the latest version (or any of the 3 immediate preceding versions).

I see that can be the problem. Sorry I cannot execute the command you suggested (i guess from Ubuntu Distro), I did not self-hosted JitSi, I just downloaded the CDN.

Sorry, I don’t understand. What server are you connecting to - meet.jit.si?

Yes.

So what did you download? Can you share the URL to the download page?

I just updated my JS file using this link: https://meet.jit.si/external_api.js

On a side note, thank you Freddie for taking time responding to my inquiry.

Ah, so you’re using the iFrame API then, you didn’t have to download anything.
Which then makes your situation a bit puzzling: you should not be having Plan B deprecation issues if you’re embedding Jitsi’s iFrame.

Can you do a test meeting and then gather the browser console logs from the Chrome browser that’s experiencing problems and share here?

Sure, here it is:
(TIME) index.html loaded: 1071.699999988079
Logger.js:154 2022-01-21T08:30:54.467Z [modules/browser/BrowserCapabilities.js] <new >: This appears to be chrome, ver: 97.0.4692.71
LocalStatsCollector.js:22 The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. Autoplay policy in Chrome - Chrome Developers
7273 @ LocalStatsCollector.js:22
webpack_require @ bootstrap:19
2809 @ index.js:3
webpack_require @ bootstrap:19
(anonymous) @ startup:4
(anonymous) @ startup:4
(anonymous) @ universalModuleDefinition:9
(anonymous) @ universalModuleDefinition:1
Logger.js:154 2022-01-21T08:30:54.560Z [modules/RTC/RTCUtils.js] : list of media devices has changed: (6) [InputDeviceInfo, InputDeviceInfo, InputDeviceInfo, MediaDeviceInfo, MediaDeviceInfo, MediaDeviceInfo]
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:55.835Z [features/base/redux] <Object.persistState>: redux state persisted. af1e2aa2d8423963c37d3ccf2709e336 → 1b1403d5b16f92c45b97ecf0083d424f
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.070Z [features/base/config] Extending config with: {“disablePolls”:false,“disableRemoteMute”:true,“prejoinPageEnabled”:false,“remoteVideoMenu”:{“disableKick”:true},“startWithAudioMuted”:true}
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.072Z [features/base/config] Extending interfaceConfig with: {“HIDE_INVITE_MORE_HEADER”:true,“SETTINGS_SECTIONS”:[“devices”],“SHOW_CHROME_EXTENSION_BANNER”:false,“TOOLBAR_BUTTONS”:[“microphone”,“camera”,“closedcaptions”,“desktop”,“fodeviceselection”,“hangup”,“fullscreen”,“raisehand”,“settings”,“videoquality”,“stats”,“chat”,“videobackgroundblur”,“select-background”]}
Logger.js:154 2022-01-21T08:30:56.113Z [FeatureFlags] <Object.init>: Source name signaling: false
app.bundle.min.js?v=5764.2473:138 [Amplitude] Cleaning up cookies availability test
app.bundle.min.js?v=5764.2473:138 [Amplitude] Cleaning up cookies availability test
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.300Z [features/analytics] Initialized 1 analytics handlers
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.306Z [features/base/media] Start muted: audio,
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.310Z [features/base/media] Start audio only set to false
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.790Z [index.web] <HTMLDocument.>: (TIME) document ready: 4066.2999999821186
chrome-extension://invalid/:1 GET chrome-extension://invalid/ net::ERR_FAILED
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(anonymous) @ 0ca3b29c79499f12d185:32
Show 75 more frames
Logger.js:154 2022-01-21T08:30:57.288Z [modules/RTC/RTCUtils.js] Audio output device set to default
Logger.js:154 2022-01-21T08:30:57.540Z [modules/xmpp/xmpp.js] <Ur._initStrophePlugins>: P2P STUN servers: [{…}]
Logger.js:154 2022-01-21T08:30:57.566Z [modules/xmpp/xmpp.js] <Ur.connectionHandler>: (TIME) Strophe connecting: 4841.5
Logger.js:154 2022-01-21T08:30:57.572Z [modules/RTC/RTCUtils.js] <vi.>: Got media constraints: {“video”:{“height”:{“ideal”:720,“max”:720,“min”:180},“width”:{“ideal”:1280,“max”:1280,“min”:320},“facingMode”:“user”},“audio”:{“autoGainControl”:true,“echoCancellation”:true,“noiseSuppression”:true}}
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:57.833Z [features/base/redux] <Object.persistState>: redux state persisted. 1b1403d5b16f92c45b97ecf0083d424f → 58de336cb1911c44d2ccbc0393f1193f
Logger.js:154 2022-01-21T08:31:00.097Z [modules/RTC/RTCUtils.js] onUserMediaSuccess
Logger.js:154 2022-01-21T08:31:01.788Z [modules/xmpp/XmppConnection.js] <ds._maybeEnableStreamResume>: Enabling XEP-0198 stream management
Logger.js:154 2022-01-21T08:31:01.789Z [modules/xmpp/XmppConnection.js] <ds._maybeStartWSKeepAlive>: WebSocket keep alive interval: 60000ms
Logger.js:154 2022-01-21T08:31:01.791Z [modules/xmpp/strophe.ping.js] <as.startInterval>: XMPP pings will be sent every 10000 ms
Logger.js:154 2022-01-21T08:31:01.796Z [modules/xmpp/xmpp.js] <Ur.connectionHandler>: (TIME) Strophe connected: 9072.699999988079
Logger.js:154 2022-01-21T08:31:01.797Z [modules/xmpp/xmpp.js] <Ur.connectionHandler>: My Jabber ID: 419d4864-0cfa-4592-b329-3dfe34144f70@meet.jit.si/f_bjwiUQ
Logger.js:154 2022-01-21T08:31:01.901Z [modules/xmpp/xmpp.js] <Ur.createRoom>: JID 419d4864-0cfa-4592-b329-3dfe34144f70@meet.jit.si/f_bjwiUQ using MUC nickname 419d4864
Logger.js:154 2022-01-21T08:31:01.923Z [modules/xmpp/ChatRoom.js] : Joined MUC as 0ca3b29c79499f12d185@conference.meet.jit.si/419d4864
Logger.js:154 2022-01-21T08:31:01.931Z [modules/e2eping/e2eping.js] : Initializing e2e ping; pingInterval=-1, analyticsInterval=60000.
Logger.js:154 2022-01-21T08:31:01.934Z [modules/connectivity/ParticipantConnectionStatus.js] : RtcMuteTimeout set to: 10000
Logger.js:154 2022-01-21T08:31:01.957Z [JitsiConference.js] <jc._init>: Using VAD detection for generating talk while muted events
Logger.js:154 2022-01-21T08:31:01.965Z [modules/statistics/AvgRTPStatsReporter.js] : Avg RTP stats will be calculated every 15 samples
Logger.js:154 2022-01-21T08:31:01.967Z [JitsiConference.js] : backToP2PDelay: 5
Logger.js:154 2022-01-21T08:31:01.971Z [JitsiConference.js] : End-to-End Encryption is supported
Logger.js:154 2022-01-21T08:31:02.069Z [JitsiConference.js] <jc._doReplaceTrack>: _doReplaceTrack - no JVB JingleSession
Logger.js:154 2022-01-21T08:31:02.121Z [JitsiConference.js] <jc._doReplaceTrack>: _doReplaceTrack - no P2P JingleSession
Logger.js:154 2022-01-21T08:31:02.467Z [modules/xmpp/moderator.js] <Ls.setFocusUserJid>: Focus jid set to: undefined
Logger.js:154 2022-01-21T08:31:02.473Z [modules/xmpp/moderator.js] <Ls.createConferenceIq>: Session ID: null machine UID: acba895a7abbd19a7498394561f7d2df
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:02.565Z [features/base/tracks] Replace video track - unmuted
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:02.771Z [conference.js] Initialized with 1 local tracks
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:02.969Z [modules/UI/videolayout/LargeVideoManager.js] hover in 419d4864
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:03.618Z [modules/UI/videolayout/LargeVideoManager.js] hover in 419d4864
Logger.js:154 2022-01-21T08:31:03.688Z [modules/xmpp/moderator.js] <Ls.setFocusUserJid>: Focus jid set to: focus@auth.meet.jit.si
Logger.js:154 2022-01-21T08:31:03.689Z [modules/xmpp/moderator.js] <Ls.parseConfigOptions>: Authentication enabled: false
Logger.js:154 2022-01-21T08:31:03.690Z [modules/xmpp/moderator.js] <Ls.parseConfigOptions>: External authentication enabled: false
Logger.js:154 2022-01-21T08:31:03.735Z [modules/xmpp/moderator.js] <Ls.parseConfigOptions>: Sip gateway enabled: false
Logger.js:154 2022-01-21T08:31:04.124Z [modules/xmpp/ChatRoom.js] <Us.onPresence>: (TIME) MUC join started: 11399.59999999404
Logger.js:154 2022-01-21T08:31:04.188Z [modules/xmpp/ChatRoom.js] <Us.onPresence>: entered 0ca3b29c79499f12d185@conference.meet.jit.si/focus {isReplaceParticipant: 0, affiliation: ‘owner’, role: ‘moderator’, jid: ‘focus@auth.meet.jit.si/focus’, isFocus: true, …}
Logger.js:154 2022-01-21T08:31:04.325Z [modules/version/ComponentsVersions.js] Got focus version: 1.0.840
Logger.js:154 2022-01-21T08:31:04.341Z [JitsiConference.js] <jc._updateProperties>: Audio unmute permissions set by Jicofo to false
Logger.js:154 2022-01-21T08:31:04.403Z [JitsiConference.js] <jc._updateProperties>: Video unmute permissions set by Jicofo to false
Logger.js:154 2022-01-21T08:31:04.404Z [modules/xmpp/ChatRoom.js] <Us.onPresence>: Jicofo supports restart by terminate: true
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:04.582Z [conference.js] <r.>: My role changed, new role: moderator
Logger.js:154 2022-01-21T08:31:04.672Z [modules/xmpp/ChatRoom.js] <Us.onPresence>: (TIME) MUC joined: 11948.299999982119
Logger.js:154 2022-01-21T08:31:05.706Z [modules/xmpp/ChatRoom.js] <Us.onMessage>: Subject is changed to
DevTools failed to load source map: Could not load content for https://web-cdn.jitsi.net/meetjitsi_5764.2473/libs/app.bundle.min.js.map: Load canceled due to load timeout

Hi Freddie, I tried to copy and paste here but it doesn’t appear in our thread.

(TIME) index.html loaded: 1071.699999988079
Logger.js:154 2022-01-21T08:30:54.467Z [modules/browser/BrowserCapabilities.js] <new >: This appears to be chrome, ver: 97.0.4692.71
LocalStatsCollector.js:22 The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. Autoplay policy in Chrome - Chrome Developers
7273 @ LocalStatsCollector.js:22
webpack_require @ bootstrap:19
2809 @ index.js:3
webpack_require @ bootstrap:19
(anonymous) @ startup:4
(anonymous) @ startup:4
(anonymous) @ universalModuleDefinition:9
(anonymous) @ universalModuleDefinition:1
Logger.js:154 2022-01-21T08:30:54.560Z [modules/RTC/RTCUtils.js] : list of media devices has changed: (6) [InputDeviceInfo, InputDeviceInfo, InputDeviceInfo, MediaDeviceInfo, MediaDeviceInfo, MediaDeviceInfo]
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:55.835Z [features/base/redux] <Object.persistState>: redux state persisted. af1e2aa2d8423963c37d3ccf2709e336 → 1b1403d5b16f92c45b97ecf0083d424f
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.070Z [features/base/config] Extending config with: {“disablePolls”:false,“disableRemoteMute”:true,“prejoinPageEnabled”:false,“remoteVideoMenu”:{“disableKick”:true},“startWithAudioMuted”:true}
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.072Z [features/base/config] Extending interfaceConfig with: {“HIDE_INVITE_MORE_HEADER”:true,“SETTINGS_SECTIONS”:[“devices”],“SHOW_CHROME_EXTENSION_BANNER”:false,“TOOLBAR_BUTTONS”:[“microphone”,“camera”,“closedcaptions”,“desktop”,“fodeviceselection”,“hangup”,“fullscreen”,“raisehand”,“settings”,“videoquality”,“stats”,“chat”,“videobackgroundblur”,“select-background”]}
Logger.js:154 2022-01-21T08:30:56.113Z [FeatureFlags] <Object.init>: Source name signaling: false
app.bundle.min.js?v=5764.2473:138 [Amplitude] Cleaning up cookies availability test
app.bundle.min.js?v=5764.2473:138 [Amplitude] Cleaning up cookies availability test
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.300Z [features/analytics] Initialized 1 analytics handlers
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.306Z [features/base/media] Start muted: audio,
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.310Z [features/base/media] Start audio only set to false
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:56.790Z [index.web] <HTMLDocument.>: (TIME) document ready: 4066.2999999821186
chrome-extension://invalid/:1 GET chrome-extension://invalid/ net::ERR_FAILED
Image (async)
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_openURL @ app.bundle.min.js?v=5764.2473:138
componentDidMount @ app.bundle.min.js?v=5764.2473:138
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bl @ app.bundle.min.js?v=5764.2473:138
t.unstable_runWithPriority @ app.bundle.min.js?v=5764.2473:138
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t.render @ app.bundle.min.js?v=5764.2473:138
xle.renderEntryPoint @ app.bundle.min.js?v=5764.2473:138
(anonymous) @ 0ca3b29c79499f12d185:32
Show 75 more frames
Logger.js:154 2022-01-21T08:30:57.288Z [modules/RTC/RTCUtils.js] Audio output device set to default
Logger.js:154 2022-01-21T08:30:57.540Z [modules/xmpp/xmpp.js] <Ur._initStrophePlugins>: P2P STUN servers: [{…}]
Logger.js:154 2022-01-21T08:30:57.566Z [modules/xmpp/xmpp.js] <Ur.connectionHandler>: (TIME) Strophe connecting: 4841.5
Logger.js:154 2022-01-21T08:30:57.572Z [modules/RTC/RTCUtils.js] <vi.>: Got media constraints: {“video”:{“height”:{“ideal”:720,“max”:720,“min”:180},“width”:{“ideal”:1280,“max”:1280,“min”:320},“facingMode”:“user”},“audio”:{“autoGainControl”:true,“echoCancellation”:true,“noiseSuppression”:true}}
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:30:57.833Z [features/base/redux] <Object.persistState>: redux state persisted. 1b1403d5b16f92c45b97ecf0083d424f → 58de336cb1911c44d2ccbc0393f1193f
Logger.js:154 2022-01-21T08:31:00.097Z [modules/RTC/RTCUtils.js] onUserMediaSuccess
Logger.js:154 2022-01-21T08:31:01.788Z [modules/xmpp/XmppConnection.js] <ds._maybeEnableStreamResume>: Enabling XEP-0198 stream management
Logger.js:154 2022-01-21T08:31:01.789Z [modules/xmpp/XmppConnection.js] <ds._maybeStartWSKeepAlive>: WebSocket keep alive interval: 60000ms
Logger.js:154 2022-01-21T08:31:01.791Z [modules/xmpp/strophe.ping.js] <as.startInterval>: XMPP pings will be sent every 10000 ms
Logger.js:154 2022-01-21T08:31:01.796Z [modules/xmpp/xmpp.js] <Ur.connectionHandler>: (TIME) Strophe connected: 9072.699999988079
Logger.js:154 2022-01-21T08:31:01.797Z [modules/xmpp/xmpp.js] <Ur.connectionHandler>: My Jabber ID: 419d4864-0cfa-4592-b329-3dfe34144f70@meet.jit.si/f_bjwiUQ
Logger.js:154 2022-01-21T08:31:01.901Z [modules/xmpp/xmpp.js] <Ur.createRoom>: JID 419d4864-0cfa-4592-b329-3dfe34144f70@meet.jit.si/f_bjwiUQ using MUC nickname 419d4864
Logger.js:154 2022-01-21T08:31:01.923Z [modules/xmpp/ChatRoom.js] : Joined MUC as 0ca3b29c79499f12d185@conference.meet.jit.si/419d4864
Logger.js:154 2022-01-21T08:31:01.931Z [modules/e2eping/e2eping.js] : Initializing e2e ping; pingInterval=-1, analyticsInterval=60000.
Logger.js:154 2022-01-21T08:31:01.934Z [modules/connectivity/ParticipantConnectionStatus.js] : RtcMuteTimeout set to: 10000
Logger.js:154 2022-01-21T08:31:01.957Z [JitsiConference.js] <jc._init>: Using VAD detection for generating talk while muted events
Logger.js:154 2022-01-21T08:31:01.965Z [modules/statistics/AvgRTPStatsReporter.js] : Avg RTP stats will be calculated every 15 samples
Logger.js:154 2022-01-21T08:31:01.967Z [JitsiConference.js] : backToP2PDelay: 5
Logger.js:154 2022-01-21T08:31:01.971Z [JitsiConference.js] : End-to-End Encryption is supported
Logger.js:154 2022-01-21T08:31:02.069Z [JitsiConference.js] <jc._doReplaceTrack>: _doReplaceTrack - no JVB JingleSession
Logger.js:154 2022-01-21T08:31:02.121Z [JitsiConference.js] <jc._doReplaceTrack>: _doReplaceTrack - no P2P JingleSession
Logger.js:154 2022-01-21T08:31:02.467Z [modules/xmpp/moderator.js] <Ls.setFocusUserJid>: Focus jid set to: undefined
Logger.js:154 2022-01-21T08:31:02.473Z [modules/xmpp/moderator.js] <Ls.createConferenceIq>: Session ID: null machine UID: acba895a7abbd19a7498394561f7d2df
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:02.565Z [features/base/tracks] Replace video track - unmuted
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:02.771Z [conference.js] Initialized with 1 local tracks
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:02.969Z [modules/UI/videolayout/LargeVideoManager.js] hover in 419d4864
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:03.618Z [modules/UI/videolayout/LargeVideoManager.js] hover in 419d4864
Logger.js:154 2022-01-21T08:31:03.688Z [modules/xmpp/moderator.js] <Ls.setFocusUserJid>: Focus jid set to: focus@auth.meet.jit.si
Logger.js:154 2022-01-21T08:31:03.689Z [modules/xmpp/moderator.js] <Ls.parseConfigOptions>: Authentication enabled: false
Logger.js:154 2022-01-21T08:31:03.690Z [modules/xmpp/moderator.js] <Ls.parseConfigOptions>: External authentication enabled: false
Logger.js:154 2022-01-21T08:31:03.735Z [modules/xmpp/moderator.js] <Ls.parseConfigOptions>: Sip gateway enabled: false
Logger.js:154 2022-01-21T08:31:04.124Z [modules/xmpp/ChatRoom.js] <Us.onPresence>: (TIME) MUC join started: 11399.59999999404
Logger.js:154 2022-01-21T08:31:04.188Z [modules/xmpp/ChatRoom.js] <Us.onPresence>: entered 0ca3b29c79499f12d185@conference.meet.jit.si/focus {isReplaceParticipant: 0, affiliation: ‘owner’, role: ‘moderator’, jid: ‘focus@auth.meet.jit.si/focus’, isFocus: true, …}
Logger.js:154 2022-01-21T08:31:04.325Z [modules/version/ComponentsVersions.js] Got focus version: 1.0.840
Logger.js:154 2022-01-21T08:31:04.341Z [JitsiConference.js] <jc._updateProperties>: Audio unmute permissions set by Jicofo to false
Logger.js:154 2022-01-21T08:31:04.403Z [JitsiConference.js] <jc._updateProperties>: Video unmute permissions set by Jicofo to false
Logger.js:154 2022-01-21T08:31:04.404Z [modules/xmpp/ChatRoom.js] <Us.onPresence>: Jicofo supports restart by terminate: true
app.bundle.min.js?v=5764.2473:138 2022-01-21T08:31:04.582Z [conference.js] <r.>: My role changed, new role: moderator
Logger.js:154 2022-01-21T08:31:04.672Z [modules/xmpp/ChatRoom.js] <Us.onPresence>: (TIME) MUC joined: 11948.299999982119
Logger.js:154 2022-01-21T08:31:05.706Z [modules/xmpp/ChatRoom.js] <Us.onMessage>: Subject is changed to
DevTools failed to load source map: Could not load content for https://web-cdn.jitsi.net/meetjitsi_5764.2473/libs/app.bundle.min.js.map: Load canceled due to load timeout

It says, Akismet temporarily hidden your post.

Ah, maybe because you’re new. Can you take a screenshot and share that instead?