App discover not loading images and videos

The Basics

  • Nextcloud Server version:
    • 30.0.4
  • Operating system and version:
    • Docker on Windows 10
  • Reverse proxy and version:
    • None
  • PHP version:
    • 8.3.14
  • Is this the first time you’ve seen this error? (Yes / No):
    • No, seeing this since at least one older version
  • Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
    • AIO 10.2.0
  • Are you using CloudfIare, mod_security, or similar? (Yes / No)
    • No

Summary of the issue you are facing:

When the Appstore is opened, the images and videos of app discover do not load.
This is only an issue as it produces an error in the logs; I would be glad about a way to simply turn app discover off.

However, it may also be an indicator that my network configuration is broken, as hinted in this thread. Yet, I did not change anything from the standard settings in the AIO so I find this possibility unlikely.

I can open the links in the browser without problem on my client computer as well as on the host.

Screenshot:

Steps to replicate it (hint: details matter!):

  1. Open Appstore

Log entries

Nextcloud

{
  "reqId": "[...]",
  "level": 3,
  "time": "2025-01-11T16:15:45+00:00",
  "remoteAddr": "127.0.0.1",
  "user": "[Admin-account]",
  "app": "index",
  "method": "GET",
  "url": "/settings/api/apps/media?fileName=https%3A%2F%2Fgithub.com%2Fnextcloud%2Ffirstrunwizard%2Fraw%2Fmaster%2Fimg%2FNextcloud.webm",
  "message": "Exception thrown: OCP\\Files\\NotFoundException",
  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0",
  "version": "30.0.4.1",
  "exception": {
    "Exception": "OCP\\Files\\NotFoundException",
    "Message": "",
    "Code": 0,
    "Trace": [
      {
        "file": "/var/www/html/lib/private/Files/Node/Folder.php",
        "line": 81,
        "function": "getFileInfo",
        "class": "OC\\Files\\Node\\Node",
        "type": "->",
        "args": [
          false
        ]
      },
      {
        "file": "/var/www/html/lib/private/Files/SimpleFS/SimpleFolder.php",
        "line": 33,
        "function": "getDirectoryListing",
        "class": "OC\\Files\\Node\\Folder",
        "type": "->",
        "args": []
      },
      {
        "file": "/var/www/html/apps/settings/lib/Controller/AppSettingsController.php",
        "line": 149,
        "function": "getDirectoryListing",
        "class": "OC\\Files\\SimpleFS\\SimpleFolder",
        "type": "->",
        "args": []
      },
      {
        "file": "/var/www/html/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 208,
        "function": "getAppDiscoverMedia",
        "class": "OCA\\Settings\\Controller\\AppSettingsController",
        "type": "->",
        "args": [
          "https://github.com/nextcloud/firstrunwizard/raw/master/img/Nextcloud.webm"
        ]
      },
      {
        "file": "/var/www/html/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 114,
        "function": "executeController",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->",
        "args": [
          {
            "__class__": "OCA\\Settings\\Controller\\AppSettingsController"
          },
          "getAppDiscoverMedia"
        ]
      },
      {
        "file": "/var/www/html/lib/private/AppFramework/App.php",
        "line": 161,
        "function": "dispatch",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->",
        "args": [
          {
            "__class__": "OCA\\Settings\\Controller\\AppSettingsController"
          },
          "getAppDiscoverMedia"
        ]
      },
      {
        "file": "/var/www/html/lib/private/Route/Router.php",
        "line": 302,
        "function": "main",
        "class": "OC\\AppFramework\\App",
        "type": "::",
        "args": [
          "OCA\\Settings\\Controller\\AppSettingsController",
          "getAppDiscoverMedia",
          {
            "__class__": "OC\\AppFramework\\DependencyInjection\\DIContainer"
          },
          {
            "_route": "settings.appsettings.getappdiscovermedia"
          }
        ]
      },
      {
        "file": "/var/www/html/lib/base.php",
        "line": 1003,
        "function": "match",
        "class": "OC\\Route\\Router",
        "type": "->",
        "args": [
          "/settings/api/apps/media"
        ]
      },
      {
        "file": "/var/www/html/index.php",
        "line": 24,
        "function": "handleRequest",
        "class": "OC",
        "type": "::",
        "args": []
      }
    ],
    "File": "/var/www/html/lib/private/Files/Node/Node.php",
    "Line": 90,
    "message": "",
    "exception": [],
    "CustomMessage": "Exception thrown: OCP\\Files\\NotFoundException"
  },
  "id": "[...]"
}

Web Browser

GET
https://[My-cloud-URL]/settings/api/apps/media?fileName=https://nextcloud.com/c/uploads/2024/09/Nextcloud-Hub-9-1024x576.jpg
[HTTP/2 500  126ms]

GET
https://[My-cloud-URL]/settings/api/apps/media?fileName=https://github.com/nextcloud/firstrunwizard/raw/master/img/Nextcloud.webm
NS_BINDING_ABORTED

HTTP-Laden ist mit dem Status 500 fehlgeschlagen. Laden der Medienressource https://[My-cloud-URL]/settings/api/apps/media?fileName=https%3A%2F%2Fgithub.com%2Fnextcloud%2Ffirstrunwizard%2Fraw%2Fmaster%2Fimg%2FNextcloud.webm fehlgeschlagen. discover

GET
https://[My-cloud-URL]/settings/api/apps/media?fileName=https://github.com/nextcloud/firstrunwizard/raw/master/img/Nextcloud.mp4
[HTTP/2 500  117ms]

HTTP-Laden ist mit dem Status 500 fehlgeschlagen. Laden der Medienressource https://[My-cloud-URL]/settings/api/apps/media?fileName=https%3A%2F%2Fgithub.com%2Fnextcloud%2Ffirstrunwizard%2Fraw%2Fmaster%2Fimg%2FNextcloud.mp4 fehlgeschlagen. discover
Alle Kandidaten für die Ressource konnten nicht geladen werden. Medien-Laden pausiert. discover

Web server / Reverse Proxy

No log in /var/log/____; output of the Apache container’s log:

2025-01-11 16:39:31 {"level":"error","ts":1736609971.4457364,"logger":"http.handlers.reverse_proxy","msg":"aborting with incomplete response","upstream":"127.0.0.1:8000","duration":0.271117877,"request":{"remote_ip":"172.18.0.1","remote_port":"44660","client_ip":"172.18.0.1","proto":"HTTP/2.0","method":"GET","host":"[My-cloud-URL]","uri":"/apps/files_pdfviewer/js/files_pdfviewer-main.js?v=1ca13fe7-29","headers":{"Sec-Fetch-Dest":["script"],"X-Forwarded-For":["172.18.0.1"],"X-Forwarded-Proto":["https"],"X-Forwarded-Host":["[My-cloud-URL]"],"Accept":["*/*"],"Sec-Fetch-Site":["same-origin"],"Accept-Encoding":["gzip, deflate, br"],"Cookie":["REDACTED"],"User-Agent":["Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Mobile/15E148 Safari/604.1"],"Sec-Fetch-Mode":["no-cors"],"Accept-Language":["de-DE,de;q=0.9"],"Priority":["u=1, i"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h2","server_name":"[My-cloud-URL]"}},"error":"reading: context canceled"}

2025-01-11 16:39:31 {"level":"error","ts":1736609971.4458575,"logger":"http.handlers.reverse_proxy","msg":"aborting with incomplete response","upstream":"127.0.0.1:8000","duration":0.297210799,"request":{"remote_ip":"172.18.0.1","remote_port":"44660","client_ip":"172.18.0.1","proto":"HTTP/2.0","method":"GET","host":"[My-cloud-URL]","uri":"/apps/viewer/js/viewer-init.mjs?v=1ca13fe7-29","headers":{"X-Forwarded-Host":["[My-cloud-URL]"],"Origin":["[My-cloud-URL]"],"Accept-Language":["de-DE,de;q=0.9"],"Priority":["u=1, i"],"Accept-Encoding":["gzip, deflate, br"],"Sec-Fetch-Site":["same-origin"],"Cookie":["REDACTED"],"User-Agent":["Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Mobile/15E148 Safari/604.1"],"Accept":["*/*"],"Sec-Fetch-Dest":["script"],"Sec-Fetch-Mode":["cors"],"X-Forwarded-For":["172.18.0.1"],"X-Forwarded-Proto":["https"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h2","server_name":[My-cloud-URL]}},"error":"reading: context canceled"}

2025-01-11 16:39:31 {"level":"error","ts":1736609971.4459527,"logger":"http.handlers.reverse_proxy","msg":"aborting with incomplete response","upstream":"127.0.0.1:8000","duration":0.232226257,"request":{"remote_ip":"172.18.0.1","remote_port":"44660","client_ip":"172.18.0.1","proto":"HTTP/2.0","method":"GET","host":"[My-cloud-URL]","uri":"/dist/core-main.js?v=1ca13fe7-29","headers":{"Priority":["u=1, i"],"X-Forwarded-For":["172.18.0.1"],"X-Forwarded-Host":["[My-cloud-URL]"],"Sec-Fetch-Mode":["no-cors"],"Sec-Fetch-Dest":["script"],"Accept":["*/*"],"Sec-Fetch-Site":["same-origin"],"Cookie":["REDACTED"],"X-Forwarded-Proto":["https"],"Accept-Language":["de-DE,de;q=0.9"],"Accept-Encoding":["gzip, deflate, br"],"User-Agent":["Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Mobile/15E148 Safari/604.1"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h2","server_name":[My-cloud-URL]}},"error":"reading: context canceled"}

2025-01-11 16:39:31 {"level":"error","ts":1736609971.4460866,"logger":"http.handlers.reverse_proxy","msg":"aborting with incomplete response","upstream":"127.0.0.1:8000","duration":0.019253749,"request":{"remote_ip":"172.18.0.1","remote_port":"44660","client_ip":"172.18.0.1","proto":"HTTP/2.0","method":"GET","host":[My-cloud-URL],"uri":"/dist/core-common.js?v=1ca13fe7-29","headers":{"Priority":["u=1, i"],"Accept-Encoding":["gzip, deflate, br"],"Sec-Fetch-Mode":["no-cors"],"Cookie":["REDACTED"],"Sec-Fetch-Dest":["script"],"Accept":["*/*"],"Sec-Fetch-Site":["same-origin"],"Accept-Language":["de-DE,de;q=0.9"],"User-Agent":["Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Mobile/15E148 Safari/604.1"],"X-Forwarded-For":["172.18.0.1"],"X-Forwarded-Proto":["https"],"X-Forwarded-Host":[[My-cloud-URL]]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h2","server_name":[My-cloud-URL]}},"error":"reading: context canceled"}

Configuration

Nextcloud

{
    "system": {
        "one-click-instance": true,
        "one-click-instance.user-limit": 100,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "check_data_directory_permissions": false,
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "password": "***REMOVED SENSITIVE VALUE***",
            "port": 6379
        },
        "overwritehost": "cloud.akademie-siebenburg.de",
        "overwriteprotocol": "https",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "localhost",
            "***REMOVED SENSITIVE VALUE***"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "30.0.4.1",
        "overwrite.cli.url": "https:\/\/cloud.akademie-siebenburg.de\/",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "maintenance": false,
        "loglevel": 2,
        "log_type": "file",
        "logfile": "\/var\/www\/html\/data\/nextcloud.log",
        "log_rotate_size": "10485760",
        "log.condition": {
            "apps": [
                "admin_audit"
            ]
        },
        "preview_max_x": 1024,
        "preview_max_y": 512,
        "jpeg_quality": 60,
        "enabledPreviewProviders": {
            "1": "OC\\Preview\\MP3",
            "4": "OC\\Preview\\Krita",
            "5": "OC\\Preview\\Imaginary",
            "6": "OC\\Preview\\Image",
            "7": "OC\\Preview\\HEIC",
            "8": "OC\\Preview\\TIFF",
            "9": "OC\\Preview\\Movie",
            "0": "OC\\Preview\\Imaginary",
            "23": "OC\\Preview\\ImaginaryPDF"
        },
        "enable_previews": true,
        "upgrade.disable-web": true,
        "mail_smtpmode": "smtp",
        "trashbin_retention_obligation": "auto, 30",
        "versions_retention_obligation": "auto, 30",
        "activity_expire_days": "30",
        "simpleSignUpLink.shown": false,
        "share_folder": "\/Shared",
        "one-click-instance.link": "https:\/\/nextcloud.com\/all-in-one\/",
        "upgrade.cli-upgrade-link": "https:\/\/github.com\/nextcloud\/all-in-one\/discussions\/2726",
        "updatedirectory": "\/nc-updater",
        "davstorage.request_timeout": 3600,
        "htaccess.RewriteBase": "\/",
        "dbpersistent": false,
        "files_external_allow_create_new_local": false,
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "allow_local_remote_servers": true,
        "preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
        "mail_sendmailmode": "smtp",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpsecure": "ssl",
        "default_phone_region": "DE",
        "appsallowlist": false,
        "maintenance_window_start": 100,
        "preview_imaginary_key": "***REMOVED SENSITIVE VALUE***",
        "auth.bruteforce.protection.enabled": true,
        "ratelimit.protection.enabled": true,
        "data-fingerprint": "***REMOVED SENSITIVE VALUE***",
        "memories.db.triggers.fcu": true,
        "memories.exiftool": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/exiftool-amd64-musl",
        "memories.vod.path": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/go-vod-amd64",
        "memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
        "memories.vod.ffprobe": "\/usr\/bin\/ffprobe",
        "defaultapp": "files",
        "documentation_url.server_logs": "https:\/\/github.com\/nextcloud\/all-in-one\/discussions\/5425",
        "forbidden_filename_basenames": [
            "con",
            "prn",
            "aux",
            "nul",
            "com0",
            "com1",
            "com2",
            "com3",
            "com4",
            "com5",
            "com6",
            "com7",
            "com8",
            "com9",
            "com\u00b9",
            "com\u00b2",
            "com\u00b3",
            "lpt0",
            "lpt1",
            "lpt2",
            "lpt3",
            "lpt4",
            "lpt5",
            "lpt6",
            "lpt7",
            "lpt8",
            "lpt9",
            "lpt\u00b9",
            "lpt\u00b2",
            "lpt\u00b3"
        ],
        "forbidden_filename_characters": [
            "<",
            ">",
            ":",
            "\"",
            "|",
            "?",
            "*",
            "\\",
            "\/"
        ],
        "forbidden_filename_extensions": [
            " ",
            ".",
            ".filepart",
            ".part"
        ],
        "onlyoffice": {
            "jwt_secret": "***REMOVED SENSITIVE VALUE***",
            "jwt_header": "AuthorizationJwt"
        },
        "DOMAIN": "***REMOVED SENSITIVE VALUE***"
    }
}

Apps

Enabled:
  - admin_audit: 1.20.0
  - bruteforcesettings: 3.0.0
  - cfg_share_links: 6.1.1
  - cloud_federation_api: 1.13.0
  - comments: 1.20.1
  - contactsinteraction: 1.11.0
  - dashboard: 7.10.0
  - dav: 1.31.1
  - deck: 1.14.2
  - federatedfilesharing: 1.20.0
  - files: 2.2.0
  - files_accesscontrol: 1.20.1
  - files_downloadlimit: 3.0.0
  - files_pdfviewer: 3.0.0
  - files_reminders: 1.3.0
  - files_sharing: 1.22.0
  - files_trashbin: 1.20.1
  - files_versions: 1.23.0
  - files_zip: 2.1.0
  - firstrunwizard: 3.0.0
  - forms: 4.3.4
  - groupfolders: 18.0.8
  - impersonate: 1.17.1
  - larpingapp: 0.1.20
  - login_notes: 1.6.1
  - logreader: 3.0.0
  - lookup_server_connector: 1.18.0
  - mail: 4.1.1
  - memories: 7.4.1
  - nextcloud-aio: 0.7.0
  - notes: 4.11.0
  - notifications: 3.0.0
  - notify_push: 0.7.0
  - oauth2: 1.18.1
  - onlyoffice: 9.5.0
  - ownershiptransfer: 1.0.1
  - password_policy: 2.0.0
  - photos: 3.0.2
  - privacy: 2.0.0
  - provisioning_api: 1.20.0
  - recommendations: 3.0.0
  - related_resources: 1.5.0
  - serverinfo: 2.0.0
  - settings: 1.13.0
  - sharebymail: 1.20.0
  - sharereview: 1.3.3
  - support: 2.0.0
  - systemtags: 1.20.0
  - tasks: 0.16.1
  - text: 4.1.0
  - theming: 2.5.0
  - theming_customcss: 1.18.0
  - twofactor_backupcodes: 1.19.0
  - twofactor_totp: 12.0.0-dev
  - viewer: 3.0.0
  - webhook_listeners: 1.1.0-dev
  - welcome: 1.2.1
  - workflowengine: 2.12.0
Disabled:
  - activity: 3.0.0 (installed 2.19.0)
  - app_api: 4.0.3 (installed 4.0.0)
  - circles: 30.0.0 (installed 29.0.0-dev)
  - encryption: 2.18.0
  - federation: 1.20.0 (installed 1.17.0)
  - files_archive: 1.2.3 (installed 1.2.3)
  - files_external: 1.22.0
  - nextcloud_announcements: 2.0.0 (installed 1.16.0)
  - polls: 7.2.9 (installed 7.2.9)
  - previewgenerator: 5.7.0 (installed 5.7.0)
  - survey_client: 2.0.0 (installed 1.15.0)
  - suspicious_login: 8.0.0
  - tables: 0.8.3 (installed 0.8.3)
  - twofactor_nextcloud_notification: 4.0.0
  - user_ldap: 1.21.0
  - user_status: 1.10.0 (installed 1.7.0)
  - weather_status: 1.10.0 (installed 1.7.0)
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