NC 12.1.4, Collabora behind Apache: Traefik 3 is "Rejecting request because it contains encoded character"

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The Basics

  • Nextcloud Server version (e.g., 29.x.x):
    • 32.0.2
  • Is this the first time you’ve seen this error? (Yes / No):
    • Yes, Collabora has worked with this config before.
  • When did this problem seem to first start?
    • Not sure, seems to have started with 32 updates, or Traefik 3.x.x update?
  • Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
    • AIO
  • Are you using CloudfIare, mod_security, or similar? (Yes / No)
    • No

Summary of the issue you are facing:

Opening office files fail: “Failed to establish socket connection or socket connection closed unexpectedly. The reverse proxy might be misconfigured, please contact the administrator. For more info on proxy configuration please checkout Making sure you're not a bot! ”
Have removed my more extensive Traefik middlewares to only contain the ones as in the ReverseProxy documentation.

Traefik debug log gives: “Rejecting request because it contains encoded character %2F in the URL path: /cool/http%3A%2F%2Fnextcloud-aio-apache%3A23973%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F46155_oc6jhcgy0wod%3Faccess_token%3D4Yi2MnI6oiKMzAudVGmbU057NAYCAloo%26access_token_ttl%3D0%26permission%3Dedit/ws”

According to (many) sources (including Collabora’s) this should be solved by having “AllowEncodedSlashes NoDecode” in the virtual host section of the httpd.conf of Apache.
The ReverseProxy documentation of Nextcloud mentions it for the Apache config as well.
Issue #1236 seems to mention it was added to the config in the past.
In the current config of the nextcloud-aio-apache container I can not find it.

I can not add it to the read-only filesystem to test.

How can I add this directive, and why is it not there anymore?
Log entries

Nextcloud

Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.

Seems to me not relevant for this issue, but only ones there...)

Deploy daemon "harp_proxy_docker" is not accessible by Nextcloud. Please verify its configuration

ClientException
Client error: `GET http://nextcloud-appapi-harp:8780/exapps/app_api/v1.41/_ping` resulted in a `400 Bad Request` response: {"message":"client version 1.41 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer (truncated...)
Could not connect to Docker daemon via http://nextcloud-appapi-harp:8780/exapps/app_api/v1.41/_ping

(I might resolve this in due time by maybe adding "Environment=DOCKER_MIN_API_VERSION=1.24" to the docker, although I rather wait for the culprit to be updating its api call)  

Web server / Reverse Proxy

The output of your Apache/nginx/system log in /var/log/____:

Connection to nextcloud-aio-nextcloud (172.26.0.16) 9000 port [tcp/*] succeeded!

/usr/lib/python3.12/site-packages/supervisor/options.py:13: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.

  import pkg_resources

[Mon Dec 08 13:21:31.039858 2025] [mpm_event:notice] [pid 167:tid 167] AH00489: Apache/2.4.65 (Unix) configured -- resuming normal operations

[Mon Dec 08 13:21:31.039988 2025] [core:notice] [pid 167:tid 167] AH00094: Command line: '/usr/local/apache2/bin/httpd -D FOREGROUND'

INF ts=1765196491.055062 msg=maxprocs: Leaving GOMAXPROCS=4: CPU quota undefined

INF ts=1765196491.0556002 msg=GOMEMLIMIT is updated package=github.com/KimMachineGun/automemlimit/memlimit GOMEMLIMIT=30069607219 previous=9223372036854776000

INF ts=1765196491.0556831 msg=using config from file file=/tmp/Caddyfile

INF ts=1765196491.059609 msg=adapted config to JSON adapter=caddyfile

INF ts=1765196491.0672934 msg=serving initial configurationPASTE HERE

Configuration

Nextcloud

The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):

nextcloud-aio-nextcloud:/var/www/html$ php occ config:list
{
    "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
            }
        ],
        "appsallowlist": false,
        "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": "nextcloud.example.com",
        "overwriteprotocol": "https",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "localhost",
            "nextcloud.example.com"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "32.0.2.2",
        "overwrite.cli.url": "https:\/\/nextcloud.example.com\/",
        "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": "2048",
        "preview_max_y": "2048",
        "jpeg_quality": "60",
        "enabledPreviewProviders": {
            "1": "OC\\Preview\\Image",
            "2": "OC\\Preview\\MarkDown",
            "3": "OC\\Preview\\MP3",
            "4": "OC\\Preview\\TXT",
            "5": "OC\\Preview\\OpenDocument",
            "6": "OC\\Preview\\Movie",
            "7": "OC\\Preview\\Krita",
            "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",
        "maintenance_window_start": 100,
        "allow_local_remote_servers": true,
        "davstorage.request_timeout": 3600,
        "htaccess.RewriteBase": "\/",
        "dbpersistent": false,
        "auth.bruteforce.protection.enabled": true,
        "ratelimit.protection.enabled": true,
        "files_external_allow_create_new_local": true,
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
        "preview_imaginary_key": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_sendmailmode": "smtp",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "default_phone_region": "NL",
        "twofactor_enforced": "true",
        "twofactor_enforced_groups": [],
        "twofactor_enforced_excluded_groups": [],
        "documentation_url.server_logs": "https:\/\/github.com\/nextcloud\/all-in-one\/discussions\/5425",
        "updater.release.channel": "stable",
        "app_install_overwrite": [
            "nextcloud-aio"
        ],
        "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"
        ],
        "data-fingerprint": "3429fa4e1b9d2089809a195a70251798",
        "updatechecker": false,
        "DOMAIN": "nextcloud.example.com"
    },
    "apps": {
        "activity": {
            "types": "filesystem",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.0"
        },
        "admin_audit": {
            "types": "logging",
            "enabled": "yes",
            "logfile": "\/var\/www\/html\/data\/audit.log",
            "installed_version": "1.22.0"
        },
        "app_api": {
            "types": "",
            "enabled": "yes",
            "installed_version": "32.0.0",
            "default_daemon_config": "harp_proxy_docker"
        },
        "backgroundjob": {
            "lastjob": "12"
        },
        "bruteforcesettings": {
            "types": "",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.0"
        },
        "calendar": {
            "types": "",
            "installed_version": "6.1.1",
            "enabled": "yes"
        },
        "circles": {
            "types": "filesystem,dav",
            "enabled": "yes",
            "installed_version": "32.0.0",
            "loopback_tmp_scheme": "https",
            "migration_22": "1",
            "loopback_tmp_path": "\/",
            "migration_run": "0",
            "maintenance_run": "0",
            "maintenance_update": "{\"3\":1765196786,\"2\":1765197687,\"1\":1765197986}"
        },
        "cloud_federation_api": {
            "types": "filesystem",
            "enabled": "yes",
            "installed_version": "1.16.0"
        },
        "comments": {
            "types": "logging",
            "enabled": "yes",
            "installed_version": "1.22.0"
        },
        "contacts": {
            "types": "dav",
            "enabled": "yes",
            "installed_version": "8.1.1"
        },
        "contactsinteraction": {
            "types": "dav",
            "enabled": "yes",
            "installed_version": "1.13.1"
        },
        "core": {
            "installedat": "1716403595.6994",
            "vendor": "nextcloud",
            "public_files": "files_sharing\/public.php",
            "public_webdav": "dav\/appinfo\/v1\/publicwebdav.php",
            "files_metadata_installed": "1",
            "moveavatarsdone": "yes",
            "previewsCleanedUp": "1",
            "backgroundjobs_mode": "cron",
            "newUser.sendEmail": "no",
            "emailTestSuccessful": "1",
            "lastcron": 1765197987,
            "metadataGenerationDone": true,
            "lastupdatedat": 0,
            "lastupdateResult": "{\"version\":\"32.0.2.2\",\"versionstring\":\"Nextcloud 32.0.2\",\"url\":\"https:\\\/\\\/download.nextcloud.com\\\/server\\\/releases\\\/nextcloud-32.0.2.zip\",\"web\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/32\\\/admin_manual\\\/maintenance\\\/upgrade.html\",\"changes\":\"https:\\\/\\\/updates.nextcloud.com\\\/changelog_server\\\/?version=32.0.2\",\"autoupdater\":\"1\",\"eol\":\"0\"}",
            "files_metadata": {
                "photos-original_date_time": {
                    "value": null,
                    "type": "int",
                    "etag": "",
                    "indexed": true,
                    "editPermission": 0
                },
                "photos-exif": {
                    "value": null,
                    "type": "array",
                    "etag": "",
                    "indexed": false,
                    "editPermission": 0
                },
                "photos-ifd0": {
                    "value": null,
                    "type": "array",
                    "etag": "",
                    "indexed": false,
                    "editPermission": 0
                },
                "photos-size": {
                    "value": null,
                    "type": "array",
                    "etag": "",
                    "indexed": false,
                    "editPermission": 0
                },
                "photos-gps": {
                    "value": null,
                    "type": "array",
                    "etag": "",
                    "indexed": false,
                    "editPermission": 0
                },
                "files-live-photo": {
                    "value": null,
                    "type": "string",
                    "etag": "",
                    "indexed": false,
                    "editPermission": 1
                },
                "photos-place": {
                    "value": null,
                    "type": "string",
                    "etag": "",
                    "indexed": true,
                    "editPermission": 0
                },
                "blurhash": {
                    "value": null,
                    "type": "string",
                    "etag": "c126675fdc45fbe1afa17420c1cccc80",
                    "indexed": false,
                    "editPermission": 0
                }
            },
            "oc.integritycheck.checker": []
        },
        "dashboard": {
            "types": "",
            "enabled": "yes",
            "installed_version": "7.12.0"
        },
        "dav": {
            "types": "filesystem",
            "enabled": "yes",
            "regeneratedBirthdayCalendarsForYearFix": "yes",
            "buildCalendarSearchIndex": "yes",
            "buildCalendarReminderIndex": "yes",
            "installed_version": "1.34.2",
            "builtSocialSearchIndex": "yes",
            "chunks_migrated": "1"
        },
        "deck": {
            "types": "dav",
            "enabled": "yes",
            "installed_version": "1.16.2"
        },
        "federatedfilesharing": {
            "types": "",
            "enabled": "yes",
            "installed_version": "1.22.0"
        },
        "federation": {
            "types": "authentication",
            "enabled": "yes",
            "installed_version": "1.22.0"
        },
        "files": {
            "types": "filesystem",
            "enabled": "yes",
            "installed_version": "2.4.0",
            "default_quota": "10 GB",
            "mimetype_version": "32.0.2.2"
        },
        "files_antivirus": {
            "av_path": "\/usr\/bin\/clamscan",
            "types": "filesystem,dav",
            "av_mode": "daemon",
            "av_port": "3310",
            "av_host": "nextcloud-aio-clamav",
            "av_infected_action": "only_log",
            "av_max_file_size": "-1",
            "av_stream_max_length": "2147483648",
            "installed_version": "6.1.0",
            "enabled": "yes"
        },
        "files_downloadlimit": {
            "types": "",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.0"
        },
        "files_fulltextsearch": {
            "types": "filesystem",
            "files_pdf": true,
            "files_office": true,
            "enabled": "yes",
            "installed_version": "32.0.2"
        },
        "files_pdfviewer": {
            "types": "",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.0"
        },
        "files_reminders": {
            "enabled": "yes",
            "types": "",
            "installed_version": "1.5.0"
        },
        "files_sharing": {
            "types": "filesystem",
            "enabled": "yes",
            "installed_version": "1.24.1"
        },
        "files_trashbin": {
            "types": "filesystem,dav",
            "enabled": "yes",
            "installed_version": "1.22.0",
            "background_job_expire_trash_offset": 0
        },
        "files_versions": {
            "types": "filesystem,dav",
            "enabled": "yes",
            "installed_version": "1.25.0"
        },
        "firstrunwizard": {
            "enabled": "yes",
            "types": "",
            "installed_version": "5.0.0-dev.0"
        },
        "fulltextsearch": {
            "types": "",
            "search_platform": "OCA\\FullTextSearch_Elasticsearch\\Platform\\ElasticSearchPlatform",
            "enabled": "yes",
            "installed_version": "32.0.0",
            "cron_err_reset": 1764857378
        },
        "fulltextsearch_elasticsearch": {
            "types": "",
            "analyzer_tokenizer": "standard",
            "installed_version": "32.0.0",
            "enabled": "yes",
            "elastic_index": "nextcloud-aio",
            "elastic_host": "http:\/\/elastic:6ee01e8889cf0eeaa51368fee9be11d122790ae3ee9e6c64@nextcloud-aio-fulltextsearch:9200"
        },
        "impersonate": {
            "types": "prevent_group_restriction",
            "installed_version": "3.0.0",
            "enabled": "yes"
        },
        "integration_google": {
            "types": "",
            "enabled": "yes",
            "installed_version": "4.3.0",
            "client_id": "***REMOVED SENSITIVE VALUE***",
            "client_secret": "***REMOVED SENSITIVE VALUE***"
        },
        "logreader": {
            "types": "logging",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.0"
        },
        "lookup_server_connector": {
            "types": "authentication",
            "enabled": "yes",
            "installed_version": "1.20.0"
        },
        "nextcloud-aio": {
            "types": "",
            "enabled": "yes",
            "installed_version": "0.8.0"
        },
        "nextcloud_announcements": {
            "types": "logging",
            "enabled": "yes",
            "installed_version": "4.0.0-dev.0",
            "pub_date": "Thu, 24 Oct 2019 00:00:00 +0200"
        },
        "notes": {
            "types": "",
            "enabled": "yes",
            "installed_version": "4.12.4"
        },
        "notifications": {
            "types": "logging",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.0"
        },
        "notify_push": {
            "types": "filesystem",
            "base_endpoint": "https:\/\/nextcloud.example.com\/push",
            "installed_version": "1.2.1",
            "enabled": "yes"
        },
        "oauth2": {
            "types": "authentication",
            "enabled": "yes",
            "installed_version": "1.20.0"
        },
        "password_policy": {
            "types": "authentication",
            "enabled": "yes",
            "installed_version": "4.0.0-dev.0",
            "enforceUpperLowerCase": "1",
            "enforceNumericCharacters": "1",
            "enforceSpecialCharacters": "1",
            "maximumLoginAttempts": "5",
            "minLength": "30"
        },
        "photos": {
            "types": "dav,authentication",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.1",
            "lastPlaceMappedUser": "admin",
            "lastPlaceMappingDone": "true"
        },
        "preview": {
            "jpeg_quality": "60"
        },
        "privacy": {
            "types": "",
            "enabled": "yes",
            "installed_version": "4.0.0-dev.0",
            "readableLocation": "nl"
        },
        "profile": {
            "types": "",
            "enabled": "yes",
            "installed_version": "1.1.0"
        },
        "provisioning_api": {
            "types": "prevent_group_restriction",
            "enabled": "yes",
            "installed_version": "1.22.0"
        },
        "quota_warning": {
            "types": "filesystem",
            "installed_version": "1.22.0",
            "initialised": "yes",
            "enabled": "yes"
        },
        "recommendations": {
            "types": "",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.0"
        },
        "related_resources": {
            "types": "",
            "enabled": "yes",
            "installed_version": "3.0.0-dev.0"
        },
        "richdocuments": {
            "public_wopi_url": "https:\/\/nextcloud.example.com",
            "enabled": "yes",
            "installed_version": "9.0.2",
            "types": "filesystem,prevent_group_restriction",
            "wopi_callback_url": "http:\/\/nextcloud-aio-apache:23973",
            "doc_format": "ooxml",
            "wopi_allowlist": "212.187.79.212,127.0.0.1\/8,192.168.0.0\/16,172.16.0.0\/12,10.0.0.0\/8,fd00::\/8,::1,192.168.172.77",
            "wopi_url": "http:\/\/nextcloud-aio-apache:23973"
        },
        "serverinfo": {
            "types": "",
            "enabled": "yes",
            "installed_version": "4.0.0-dev.0",
            "cached_count_storages": "6",
            "cached_count_filecache": 38519,
            "size_appdata_storage": -1,
            "cached_count_appdata_files": 33921
        },
        "settings": {
            "types": "",
            "enabled": "yes",
            "installed_version": "1.15.1",
            "profile_enabled_by_default": "1"
        },
        "sharebymail": {
            "types": "filesystem",
            "enabled": "yes",
            "installed_version": "1.22.0"
        },
        "spreed": {
            "types": "dav,prevent_group_restriction",
            "project_access_invalidated": "1",
            "turn_servers": "***REMOVED SENSITIVE VALUE***",
            "stun_servers": "***REMOVED SENSITIVE VALUE***",
            "signaling_servers": "***REMOVED SENSITIVE VALUE***",
            "has_reference_id": "yes",
            "enabled": "yes",
            "installed_version": "22.0.4",
            "signaling_ticket_secret": "***REMOVED SENSITIVE VALUE***",
            "signaling_token_privkey_es256": "***REMOVED SENSITIVE VALUE***",
            "signaling_token_pubkey_es256": "***REMOVED SENSITIVE VALUE***",
            "recording_servers": "***REMOVED SENSITIVE VALUE***",
            "sip_bridge_groups": "[\"admin\"]",
            "sip_bridge_dialin_info": "***REMOVED SENSITIVE VALUE***",
            "sip_bridge_shared_secret": "***REMOVED SENSITIVE VALUE***"
        },
        "support": {
            "types": "session",
            "enabled": "yes",
            "installed_version": "4.0.0-dev.0",
            "SwitchUpdaterServerHasRun": "yes"
        },
        "survey_client": {
            "types": "",
            "enabled": "yes",
            "installed_version": "4.0.0-dev.0"
        },
        "systemtags": {
            "types": "logging",
            "enabled": "yes",
            "installed_version": "1.22.0"
        },
        "tasks": {
            "types": "",
            "installed_version": "0.17.1",
            "enabled": "yes"
        },
        "text": {
            "types": "dav",
            "enabled": "yes",
            "installed_version": "6.0.1"
        },
        "theming": {
            "types": "logging",
            "enabled": "yes",
            "installed_version": "2.7.0"
        },
        "twofactor_backupcodes": {
            "types": "",
            "enabled": "yes",
            "installed_version": "1.21.0"
        },
        "twofactor_totp": {
            "types": "",
            "enabled": "yes",
            "installed_version": "14.0.0"
        },
        "updatenotification": {
            "types": "",
            "enabled": "yes",
            "contacts": "8.1.1",
            "core": "32.0.2.2",
            "update_check_errors": 0,
            "tasks": "0.17.1",
            "notes": "4.12.4",
            "installed_version": "1.22.0",
            "notify_push": "1.2.1",
            "calendar": "6.1.1",
            "files_antivirus": "6.0.5",
            "richdocuments": "9.0.2",
            "notify_groups": "[]",
            "integration_google": "4.3.0",
            "quota_warning": "1.22.0",
            "whiteboard": "1.4.2",
            "deck": "1.16.2",
            "spreed": "22.0.4"
        },
        "user_oidc": {
            "provider-1-mappingEmail": "email",
            "provider-1-jwksCache": "{\"keys\": [{\"kid\": \"e7901232a655dd24afb40129ac6e22c7\", \"kty\": \"RSA\", \"alg\": \"RS256\", \"use\": \"sig\", \"n\": \"mjRMyJccRzwVjrtZLXIOnS0nPk1d7E0JNbRP2XtRJnzZgDNY92zpnIECfWTDsrPD37kEnDa3zf1cLT9N7rZtZA4TFIiYCOXnyWBb3OSQfVfcioqae-Vg3uALUmkWpuDd5u8bi8Abznv5R5RbX8H7mfIUiuWZqtOgUC-j-EPXHDwrLsGIic7EW8dR_y7iF2qwSCPRTTXKUbmX_KYbR9uAlIs5ZjbxJn5e-SCSIJz6wvNnHX_Pq08MDszMNgxFRPiyznLjTig99v0cRWgeN-z01K_Juc9VgX5ZWCaXJ-EaoWD3HmPT6DpsHNOx0zjWPPe-DSj9PmGm8mvryaDuYylNY_5PkiXdZAy0xR8EkwwB4rDDvXXuw5OlbuZGZsiNSTEmkTqGflBS3fbt0h9n6-PD6QrtZpAxAmO049vgszWEFT39Bhq1WPDj6VKQoR8ZetcXV1uR8rfWUt28n5_fdJRaxJEj5icTO-Ioz2bx0rDA74I9QxtO_mMM2jTg-rQxCOQ-Sse4Tzya3TM0gUVjatt7qQ-bFS3AvMHrIwS6OwwfWNwQkEe0jyLvzaunv6TdRchyXjhi4H2kwkgaRopgvNxudXaf4JFO4Xh4FHcUTBQ4kJBNqqXVqaBofX1pFwNUg3hw-DJZznxbNN3F53x_IR3H9jb-qoYnTdLUICBxIYeOMR0\", \"e\": \"AQAB\", \"x5c\": [\"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\"], \"x5t\": \"dh-bGzrFbzcSTVUqYEpOBpSwn24\", \"x5t#S256\": \"HHq_VTtrb-wfZcYRDjQuIg02G8TnX5iF3aN936Zp2-0\"}]}",
            "provider-1-jwksCacheTimestamp": "1716490257",
            "enabled": "no",
            "provider-1-mappingDisplayName": "name",
            "provider-1-mappingGroups": "groups",
            "provider-1-mappingAddress": "",
            "provider-1-mappingStreetaddress": "",
            "provider-1-mappingPostalcode": "",
            "provider-1-mappingLocality": "",
            "provider-1-mappingRegion": "",
            "provider-1-mappingCountry": "",
            "provider-1-mappingWebsite": "",
            "provider-1-mappingAvatar": "",
            "provider-1-mappingTwitter": "",
            "provider-1-mappingFediverse": "",
            "provider-1-mappingOrganisation": "",
            "provider-1-mappingRole": "",
            "provider-1-mappingHeadline": "",
            "provider-1-mappingBiography": "",
            "provider-1-mappingPhonenumber": "",
            "provider-1-mappingGender": "",
            "provider-1-extraClaims": "",
            "provider-1-groupProvisioning": "1",
            "provider-1-uniqueUid": "0",
            "provider-1-checkBearer": "0",
            "provider-1-bearerProvisioning": "0",
            "provider-1-providerBasedId": "0",
            "provider-1-sendIdTokenHint": "1",
            "provider-1-mappingUid": "user_id",
            "provider-1-mappingQuota": "quota",
            "types": "authentication",
            "installed_version": "8.1.0"
        },
        "user_status": {
            "types": "",
            "enabled": "yes",
            "installed_version": "1.12.0"
        },
        "viewer": {
            "types": "",
            "enabled": "yes",
            "installed_version": "5.0.0-dev.0"
        },
        "weather_status": {
            "types": "",
            "enabled": "yes",
            "installed_version": "1.12.0"
        },
        "webhook_listeners": {
            "types": "filesystem",
            "enabled": "yes",
            "installed_version": "1.3.0"
        },
        "whiteboard": {
            "types": "",
            "collabBackendUrl": "https:\/\/nextcloud.example.com\/whiteboard",
            "jwt_secret_key": "***REMOVED SENSITIVE VALUE***",
            "enabled": "yes",
            "installed_version": "1.4.2",
            "max_file_size": 10
        },
        "workflowengine": {
            "types": "filesystem",
            "enabled": "yes",
            "installed_version": "2.14.0"
        }
    }
}

Apps

The output of occ app:list (if possible).

nextcloud-aio-nextcloud:/var/www/html$ php occ app:list
Enabled:

  • activity: 5.0.0-dev.0
  • admin_audit: 1.22.0
  • app_api: 32.0.0
  • bruteforcesettings: 5.0.0-dev.0
  • calendar: 6.1.1
  • circles: 32.0.0
  • cloud_federation_api: 1.16.0
  • comments: 1.22.0
  • contacts: 8.1.1
  • contactsinteraction: 1.13.1
  • dashboard: 7.12.0
  • dav: 1.34.2
  • deck: 1.16.2
  • federatedfilesharing: 1.22.0
  • federation: 1.22.0
  • files: 2.4.0
  • files_antivirus: 6.1.0
  • files_downloadlimit: 5.0.0-dev.0
  • files_fulltextsearch: 32.0.2
  • files_pdfviewer: 5.0.0-dev.0
  • files_reminders: 1.5.0
  • files_sharing: 1.24.1
  • files_trashbin: 1.22.0
  • files_versions: 1.25.0
  • firstrunwizard: 5.0.0-dev.0
  • fulltextsearch: 32.0.0
  • fulltextsearch_elasticsearch: 32.0.0
  • impersonate: 3.0.0
  • integration_google: 4.3.0
  • logreader: 5.0.0-dev.0
  • lookup_server_connector: 1.20.0
  • nextcloud-aio: 0.8.0
  • nextcloud_announcements: 4.0.0-dev.0
  • notes: 4.12.4
  • notifications: 5.0.0-dev.0
  • notify_push: 1.2.1
  • oauth2: 1.20.0
  • password_policy: 4.0.0-dev.0
  • photos: 5.0.0-dev.1
  • privacy: 4.0.0-dev.0
  • profile: 1.1.0
  • provisioning_api: 1.22.0
  • quota_warning: 1.22.0
  • recommendations: 5.0.0-dev.0
  • related_resources: 3.0.0-dev.0
  • richdocuments: 9.0.2
  • serverinfo: 4.0.0-dev.0
  • settings: 1.15.1
  • sharebymail: 1.22.0
  • spreed: 22.0.4
  • support: 4.0.0-dev.0
  • survey_client: 4.0.0-dev.0
  • systemtags: 1.22.0
  • tasks: 0.17.1
  • text: 6.0.1
  • theming: 2.7.0
  • twofactor_backupcodes: 1.21.0
  • twofactor_totp: 14.0.0
  • updatenotification: 1.22.0
  • user_status: 1.12.0
  • viewer: 5.0.0-dev.0
  • weather_status: 1.12.0
  • webhook_listeners: 1.3.0
  • whiteboard: 1.4.2
  • workflowengine: 2.14.0
    Disabled:
  • encryption: 2.20.0
  • files_external: 1.24.0
  • suspicious_login: 10.0.0-dev.0
  • twofactor_nextcloud_notification: 6.0.0-dev.0
  • user_ldap: 1.23.0

Hi, see https://www.reddit.com/r/selfhosted/comments/1ph9jio/traefik_v364_breaks_nextcloud_officecollabora/

Ah, thanks. Overlooked the migration notice…

Not quite there yet though. Still error… Will investigate further..,

Argh, case of PEBCAK.

(Initially wrong Traefik instance config modified. Now the correct one and it works!)