only Firefox: cannot join conversation or start a new conversation

[tomthecat]

Steps to reproduce

1. open NC instance in Firefox >60
2. click on TALK button

Expected behaviour

on the left side, existing conversations and new conversation should be visible

Actual behaviour

a grey circle, spinning forever
works flawlessly in Chrome 74

Browser

Operating system: openSUSE Leap 15.1

Browser name: Firefox

Browser version: 68.0

Browser log

Content Security Policy: Die Direktive 'child-src' sollte nicht mehr verwendet werden. Bitte verwenden Sie stattdessen die Direktive 'worker-src' zum Kontrollieren von Workern bzw. die Direktive 'frame-src' zum Kontrollieren von Frames.
JQMIGRATE: Migrate is installed, version 1.4.1 jquery-migrate.min.js:2:494
TypeError: navigator.userAgent.match(...) is null
merged.js:8180:42
Source-Map-Fehler: request failed with status 404
Ressourcen-Adresse: https://xx.yy.com/index.php/js/spreed/merged.js?v=30d96ccd-13
Source-Map-Adresse: collectionsintegration.js.map
2

​## Spreed app

Spreed app version: (see apps admin page: /index.php/settings/apps)
6.02

Custom TURN server configured: yes

Custom STUN server configured: yes

Server configuration detail

Operating system: Linux 2.6.32-042stab138.1 #1 SMP Wed May 15 09:33:10 MSK 2019 x86_64

Webserver: Apache (cgi-fcgi)

Database: mysql 10.2.24

PHP version:

7.2.18
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, pcntl, readline, Reflection, SPL, session, standard, cgi-fcgi, ctype, curl, dom, fileinfo, ftp, gd, iconv, intl, json, ldap, mbstring, mysqlnd, PDO, Phar, posix, SimpleXML, sqlite3, tokenizer, xml, xmlwriter, xsl, zip, mysqli, pdo_mysql, pdo_sqlite, wddx, xmlreader, apcu, imagick, Zend OPcache

Nextcloud version: 16.0.3 - 16.0.3.0

Updated from an older Nextcloud/ownCloud or fresh install:

Where did you install Nextcloud from: unknown

Signing status

Array
(
)

List of activated apps

Enabled:
 - accessibility: 1.2.0
 - activity: 2.9.1
 - bruteforcesettings: 1.3.0
 - cloud_federation_api: 0.2.0
 - comments: 1.6.0
 - dav: 1.9.2
 - dicomviewer: 1.2.0
 - federatedfilesharing: 1.6.0
 - federation: 1.6.0
 - files: 1.11.0
 - files_external: 1.7.0
 - files_fulltextsearch: 1.3.2
 - files_fulltextsearch_tesseract: 1.3.0
 - files_pdfviewer: 1.5.0
 - files_rightclick: 0.13.0
 - files_sharing: 1.8.0
 - files_texteditor: 2.8.0
 - files_trashbin: 1.6.0
 - files_versions: 1.9.0
 - files_videoplayer: 1.5.0
 - fulltextsearch: 1.3.4
 - fulltextsearch_elasticsearch: 1.3.4
 - gallery: 18.3.0
 - groupfolders: 4.0.3
 - issuetemplate: 0.5.0
 - logreader: 2.1.0
 - lookup_server_connector: 1.4.0
 - nextcloud_announcements: 1.5.0
 - notifications: 2.4.1
 - oauth2: 1.4.2
 - onlyoffice: 2.4.0
 - password_policy: 1.6.0
 - privacy: 1.0.0
 - provisioning_api: 1.6.0
 - recommendations: 0.4.0
 - serverinfo: 1.6.0
 - sharebymail: 1.6.0
 - spreed: 6.0.2
 - support: 1.0.0
 - survey_client: 1.4.0
 - systemtags: 1.6.0
 - theming: 1.7.0
 - twofactor_backupcodes: 1.5.0
 - updatenotification: 1.6.0
 - viewer: 1.0.0
 - workflowengine: 1.6.0
Disabled:
 - admin_audit
 - encryption
 - firstrunwizard
 - user_ldap

Configuration (config/config.php)

{
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "xx.yy.com"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "overwrite.cli.url": "https:\/\/xx.yy.com",
    "dbtype": "mysql",
    "version": "16.0.3.0",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "maintenance": false,
    "loglevel": 2,
    "theme": "",
    "memcache.local": "\\OC\\Memcache\\APCu",
    "mail_smtpmode": "sendmail",
    "mail_smtpsecure": "ssl",
    "mail_sendmailmode": "smtp",
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpauthtype": "LOGIN",
    "mail_smtpauth": 1,
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpport": "587",
    "updater.secret": "***REMOVED SENSITIVE VALUE***"
}

Are you using external storage, if yes which one: local/smb/sftp/...

Are you using encryption:

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...

Client configuration

Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3690.94 Safari/537.36

Operating system:

Logs

Web server error log

Insert your web server log here 

Nextcloud log

Insert your Nextcloud log here

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
b) The network log
c) ...

[tomthecat]

There seems to be an related issue: #215

The user agent switch seems to be the problem. After switching it off everything is working as expected.