Strange error messages in the chrome console

Hi guys,

I just updated with unstable packages on debian 10.
All seems to work ok except I consistently see these error messages in the chrome console and not sure where the error is.

Any clues?

Thanks

Errors at beginning and end of the logs:

2contentscript.js:17 Uncaught TypeError: Cannot read property 'target' of null
  at o._onMessage (contentscript.js:17)
o._onMessage @ contentscript.js:17
postMessage (async)
supportsInsertableStreams @ BrowserCapabilities.js:285
isSupported @ E2EEncryption.js:100
initFeaturesList @ xmpp.js:247
P @ xmpp.js:181
c @ JitsiConnection.js:24
m @ connection.js:103
f @ connection.js:214
$ @ conference.js:190
createInitialLocalTracksAndConnect @ conference.js:704
init @ conference.js:826
async function (async)
init @ conference.js:791
(anonymous) @ actions.web.js:31
Promise.then (async)
(anonymous) @ actions.web.js:30
(anonymous) @ index.js:11
(anonymous) @ middleware.js:29
(anonymous) @ middleware.js:32
(anonymous) @ middleware.js:31
(anonymous) @ middleware.web.js:31
(anonymous) @ middleware.any.js:22
(anonymous) @ middleware.js:67
(anonymous) @ middleware.js:43
(anonymous) @ middleware.js:61
(anonymous) @ middleware.js:88
(anonymous) @ middleware.js:71
(anonymous) @ middleware.js:78
(anonymous) @ middleware.js:39
(anonymous) @ middleware.js:106
(anonymous) @ middleware.js:38
(anonymous) @ middleware.js:33
(anonymous) @ middleware.web.js:24
(anonymous) @ middleware.any.js:93
(anonymous) @ middleware.js:77
(anonymous) @ middleware.web.js:20
(anonymous) @ middleware.js:44
(anonymous) @ middleware.js:25
(anonymous) @ middleware.js:16
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:23
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:148
(anonymous) @ middleware.js:16
(anonymous) @ middleware.js:36
(anonymous) @ middleware.js:33
(anonymous) @ middleware.js:177
(anonymous) @ middleware.js:39
(anonymous) @ middleware.js:24
(anonymous) @ middleware.js:27
(anonymous) @ middleware.web.js:20
(anonymous) @ middleware.js:42
(anonymous) @ middleware.js:149
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:60
(anonymous) @ middleware.js:44
(anonymous) @ middleware.js:49
(anonymous) @ middleware.js:29
(anonymous) @ middleware.js:12
(anonymous) @ middleware.js:39
(anonymous) @ middleware.js:35
(anonymous) @ middleware.web.js:33
(anonymous) @ middleware.any.js:102
(anonymous) @ middleware.js:106
(anonymous) @ middleware.js:19
(anonymous) @ middleware.web.js:33
(anonymous) @ middleware.js:91
(anonymous) @ middleware.js:103
(anonymous) @ middleware.js:24
(anonymous) @ middleware.js:20
(anonymous) @ middleware.js:15
(anonymous) @ middleware.js:23
(anonymous) @ middleware.js:20
(anonymous) @ middleware.js:25
(anonymous) @ middleware.js:74
(anonymous) @ middleware.js:63
(anonymous) @ middleware.js:198
(anonymous) @ middleware.web.js:107
_start @ Conference.js:293
componentDidMount @ Conference.js:143
vl @ react-dom.production.min.js:251
t.unstable_runWithPriority @ scheduler.production.min.js:18
Vr @ react-dom.production.min.js:120
yl @ react-dom.production.min.js:244
il @ react-dom.production.min.js:223
(anonymous) @ react-dom.production.min.js:121
t.unstable_runWithPriority @ scheduler.production.min.js:18
Vr @ react-dom.production.min.js:120
Kr @ react-dom.production.min.js:121
Gr @ react-dom.production.min.js:120
el @ react-dom.production.min.js:214
enqueueSetState @ react-dom.production.min.js:133
k.setState @ react.production.min.js:13
(anonymous) @ BaseApp.js:241
_navigate @ BaseApp.js:240
(anonymous) @ middleware.js:149
Promise.then (async)
(anonymous) @ middleware.js:149
(anonymous) @ middleware.js:169
(anonymous) @ middleware.js:26
(anonymous) @ middleware.js:32
(anonymous) @ middleware.js:31
(anonymous) @ middleware.web.js:31
(anonymous) @ middleware.any.js:22
(anonymous) @ middleware.js:67
(anonymous) @ middleware.js:43
(anonymous) @ middleware.js:61
(anonymous) @ middleware.js:88
(anonymous) @ middleware.js:71
(anonymous) @ middleware.js:78
(anonymous) @ middleware.js:147
(anonymous) @ middleware.js:35
(anonymous) @ middleware.js:106
(anonymous) @ middleware.js:38
(anonymous) @ middleware.js:33
(anonymous) @ middleware.web.js:24
(anonymous) @ middleware.any.js:93
(anonymous) @ middleware.js:77
(anonymous) @ middleware.web.js:20
(anonymous) @ middleware.js:44
(anonymous) @ middleware.js:25
(anonymous) @ middleware.js:16
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:23
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:148
(anonymous) @ middleware.js:16
(anonymous) @ middleware.js:36
(anonymous) @ middleware.js:33
(anonymous) @ middleware.js:177
(anonymous) @ middleware.js:39
(anonymous) @ middleware.js:24
(anonymous) @ middleware.js:27
(anonymous) @ middleware.web.js:20
(anonymous) @ middleware.js:42
(anonymous) @ middleware.js:149
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:197
(anonymous) @ middleware.js:45
(anonymous) @ middleware.js:44
(anonymous) @ middleware.js:49
(anonymous) @ middleware.js:29
(anonymous) @ middleware.js:12
(anonymous) @ middleware.js:39
(anonymous) @ middleware.js:35
(anonymous) @ middleware.web.js:33
(anonymous) @ middleware.any.js:478
(anonymous) @ middleware.any.js:95
(anonymous) @ middleware.js:96
(anonymous) @ middleware.js:19
(anonymous) @ middleware.web.js:33
(anonymous) @ middleware.js:91
(anonymous) @ middleware.js:103
(anonymous) @ middleware.js:24
(anonymous) @ middleware.js:20
(anonymous) @ middleware.js:15
(anonymous) @ middleware.js:23
(anonymous) @ middleware.js:20
(anonymous) @ middleware.js:25
(anonymous) @ middleware.js:74
(anonymous) @ middleware.js:63
(anonymous) @ middleware.js:198
(anonymous) @ middleware.web.js:107
dispatch @ redux.js:636
(anonymous) @ actions.js:138
async function (async)
(anonymous) @ actions.js:111
(anonymous) @ index.js:11
(anonymous) @ middleware.js:29
(anonymous) @ middleware.js:32
(anonymous) @ middleware.js:31
(anonymous) @ middleware.web.js:31
(anonymous) @ middleware.any.js:22
(anonymous) @ middleware.js:67
(anonymous) @ middleware.js:43
(anonymous) @ middleware.js:61
(anonymous) @ middleware.js:88
(anonymous) @ middleware.js:71
(anonymous) @ middleware.js:78
(anonymous) @ middleware.js:39
(anonymous) @ middleware.js:106
(anonymous) @ middleware.js:38
(anonymous) @ middleware.js:33
(anonymous) @ middleware.web.js:24
(anonymous) @ middleware.any.js:93
(anonymous) @ middleware.js:77
(anonymous) @ middleware.web.js:20
(anonymous) @ middleware.js:44
(anonymous) @ middleware.js:25
(anonymous) @ middleware.js:16
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:23
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:148
(anonymous) @ middleware.js:16
(anonymous) @ middleware.js:36
(anonymous) @ middleware.js:33
(anonymous) @ middleware.js:177
(anonymous) @ middleware.js:39
(anonymous) @ middleware.js:24
(anonymous) @ middleware.js:27
(anonymous) @ middleware.web.js:20
(anonymous) @ middleware.js:42
(anonymous) @ middleware.js:149
(anonymous) @ middleware.js:21
(anonymous) @ middleware.js:60
(anonymous) @ middleware.js:44
(anonymous) @ middleware.js:49
(anonymous) @ middleware.js:29
(anonymous) @ middleware.js:12
(anonymous) @ middleware.js:39
(anonymous) @ middleware.js:35
(anonymous) @ middleware.web.js:33
(anonymous) @ middleware.any.js:102
(anonymous) @ middleware.js:106
(anonymous) @ middleware.js:19
(anonymous) @ middleware.web.js:33
(anonymous) @ middleware.js:91
(anonymous) @ middleware.js:103
(anonymous) @ middleware.js:24
(anonymous) @ middleware.js:20
(anonymous) @ middleware.js:15
(anonymous) @ middleware.js:23
(anonymous) @ middleware.js:20
(anonymous) @ middleware.js:25
(anonymous) @ middleware.js:74
(anonymous) @ middleware.js:63
(anonymous) @ middleware.js:198
(anonymous) @ middleware.web.js:107
_openURL @ AbstractApp.js:113
(anonymous) @ AbstractApp.js:47
Promise.then (async)
componentDidMount @ AbstractApp.js:44
vl @ react-dom.production.min.js:251
t.unstable_runWithPriority @ scheduler.production.min.js:18
Vr @ react-dom.production.min.js:120
yl @ react-dom.production.min.js:244
il @ react-dom.production.min.js:223
el @ react-dom.production.min.js:214
Ul @ react-dom.production.min.js:279
(anonymous) @ react-dom.production.min.js:282
sl @ react-dom.production.min.js:224
Kl @ react-dom.production.min.js:282
render @ react-dom.production.min.js:286
Hc.renderEntryPoint @ index.web.js:71
(anonymous) @ teste:26
Show 197 more frames
content.js:28 Uncaught TypeError: Cannot read property 'src' of null
    at content.js:28