Uses internal IP for Logo and Background image when connecting through any other domain

Expected behaviour

Tell us what should happen

Actual behaviour

I accessed the webpage externally through my domain, this is what i got:

The Nextcloud logo and background are not loaded.

Server configuration

Operating system:
Ubuntu 16.04

Web server:
Apache2

Database:
MySQL 5.5

PHP version:
7.0

Nextcloud version: (see Nextcloud admin page)
12.0beta3

Updated from an older Nextcloud/ownCloud or fresh install:
fresh install

Where did you install Nextcloud from:
manually

Signing status:

Signing status

No errors have been found.

List of activated apps:

App list

Enabled:

• activity: 2.5.2
• admin_audit: 1.2.0
• admin_notifications: 1.0.0
• bruteforcesettings: 1.0.2
• comments: 1.2.0
• dav: 1.3.0
• federatedfilesharing: 1.2.0
• federation: 1.2.0
• files: 1.7.2
• files_downloadactivity: 1.1.1
• files_external: 1.3.0
• files_pdfviewer: 1.1.1
• files_sharing: 1.4.0
• files_texteditor: 2.4.1
• files_trashbin: 1.2.0
• files_versions: 1.5.0
• files_videoplayer: 1.1.0
• firstrunwizard: 2.1
• gallery: 17.0.0
• groupfolders: 1.0.2
• logreader: 2.0.0
• lookup_server_connector: 1.0.0
• nextcloud_announcements: 1.1
• notifications: 2.0.0
• password_policy: 1.2.2
• provisioning_api: 1.2.0
• serverinfo: 1.2.0
• sharebymail: 1.2.0
• systemtags: 1.2.0
• theming: 1.3.0
• twofactor_backupcodes: 1.1.0
• updatenotification: 1.2.0
• user_ldap: 1.2.1
• workflowengine: 1.2.0
  Disabled:
• encryption
• survey_client
• user_external

Nextcloud configuration:

Config report

{
"system": {
"instanceid": "oclzcuizekhm",
"passwordsalt": "REMOVED SENSITIVE VALUE",
"secret": "REMOVED SENSITIVE VALUE",
"trusted_domains": [
"cloud.phils-lab.net",
"phils-lab.net",
"192.168.3.3",
"appnextcloud.phils-lab.int",
"cloud.phils-lab.int"
],
"datadirectory": "/mnt/nc_storage",
"dbtype": "mysql",
"version": "12.0.0.20",
"dbname": "nextcloud",
"dbhost": "192.168.3.2:3306",
"dbport": "",
"dbtableprefix": "oc_",
"dbuser": "REMOVED SENSITIVE VALUE",
"dbpassword": "REMOVED SENSITIVE VALUE",
"installed": true,
"memcache.local": "OC\Memcache\APCu",
"mail_from_address": "cloud",
"mail_smtpmode": "php",
"mail_smtpauthtype": "LOGIN",
"mail_domain": "phils-lab.net",
"ldapIgnoreNamingRules": false,
"ldapProviderFactory": "\OCA\User_LDAP\LDAPProviderFactory",
"updater.secret": "REMOVED SENSITIVE VALUE",
"updater.release.channel": "beta",
"maintenance": false,
"loglevel": 2,
"skeletondirectory": "/mnt/nc_skeleton",
"ldapUserCleanupInterval": 5,
"enable_previews": true,
"preview_max_x": 2048,
"preview_max_y": 2048,
"enabledPreviewProviders": [
"OC\Preview\PNG",
"OC\Preview\JPEG",
"OC\Preview\GIF",
"OC\Preview\BMP",
"OC\Preview\XBitmap",
"OC\Preview\MP3",
"OC\Preview\TXT",
"OC\Preview\MarkDown",
"OC\Preview\Illustrator",
"OC\Preview\Movie",
"OC\Preview\PDF",
"OC\Preview\Photoshop",
"OC\Preview\Postscript",
"OC\Preview\SVG",
"OC\Preview\TIFF",
"OC\Preview\Font"
],
"overwrite.cli.url": "http://192.168.3.3",
"overwritehost": "cloud.phils-lab.net"
}
}

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

Are you using encryption: yes/no
no

Client configuration

Browser:
Chrome fully-patched, mozilla firefox fully patched

Operating system:
Windows 10

Browser log

Browser log

[ChristophWurst]

"overwrite.cli.url": "http://192.168.3.3"

Please set that to your actual domain/URL. This should fix your issue.

Unfortunately i already tried that, but nothing changed. It's only visible via 192.168.3.3, but not on any other domain, no matter which domain is configured in overwrite.cli.url.

I found out something very weird by further testing:

Logo + Background were uploaded via 192.168.3.3.
--> not visible on external link

I connected via the external URL and dropped in a picture for only the logo
--> the Logo, and the background are now visible on 192.168.3.3 and the external URL, but not via the local hostname of my nextcloud instance.

Seems to be a real bug, not a misconfiguration, i guess.

After a few reloads, both the logo and the background became invisible at 192.168.3.3...
browser log now shows the pictures are loaded via the external url:

I just upgraded to beta4, tested uploading the theming images from different URLs, and the problem still persists.

[luisnabais]

I have the same issue. If the images show in external URL, they don't in the internal IP.

[juliusknorr]

Should be fixed by #5429 as well.