### Steps to reproduce
Steps to reproduce the behavior:
1. Go to 'https://soci…al.librem.one/@lunduke'
2. Click on 'Follow'
3. Enter your id (i.e. @user@nextcloud.hostname.com)
4. See error RequestContentException (on https://nextcloud.hostname.com/index.php/apps/social/ostatus/follow/lunduke%40librem.one)
### Expected behaviour
I should be subscribed to @lunduke@librem.one
### Actual behaviour
If I subscribe a user at librem.one, which is a mastodon fork. I get an `RequestContentException` error:
``` json
{
"status": -1,
"exception": "OCA\\Social\\Exceptions\\RequestContentException",
"message": "404 - {\"protocol\":\"https\",\"host\":\"librem.one\",\"url\":\"/.well-known/webfinger\",\"timeout\":10,\"type\":0,\"data\":{\"resource\":\"acct:lunduke@librem.one\"}}"
}
```
## Server configuration detail
**Operating system:** Linux 3.13.0-95-generic #142-Ubuntu SMP Fri Aug 12 17:00:09 UTC 2016 x86_64
**Webserver:** Apache/2.4.39 (Ubuntu) (apache2handler)
**Database:** mysql 5.7.26
**PHP version:**
7.2.19-1+ubuntu16.04.1+deb.sury.org+1
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, sodium, session, standard, apache2handler, mysqlnd, PDO, xml, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, iconv, imagick, intl, json, exif, mysqli, pdo_mysql, Phar, posix, readline, shmop, SimpleXML, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xmlreader, xmlwriter, xsl, zip, Zend OPcache
**Nextcloud version:** 16.0.1 - 16.0.1.1
**Updated from an older Nextcloud/ownCloud or fresh install:** Nextcloud 15.0.8
**Where did you install Nextcloud from:** .tar.bz2
<details><summary>Signing status</summary>
</details>
<details><summary>List of activated apps</summary>
```
Enabled:
- accessibility: 1.2.0
- activity: 2.9.1
- admin_audit: 1.6.0
- apporder: 0.7.1
- audioplayer: 2.7.0
- bookmarks: 1.0.5
- bruteforcesettings: 1.3.0
- calendar: 1.7.0
- checksum: 0.4.3
- cloud_federation_api: 0.2.0
- comments: 1.6.0
- contacts: 3.1.1
- cospend: 0.1.0
- data_request: 1.3.0
- dav: 1.9.2
- deck: 0.6.2
- drawio: 0.9.3
- external: 3.3.0
- federatedfilesharing: 1.6.0
- federation: 1.6.0
- files: 1.11.0
- files_markdown: 2.0.6
- files_pdfviewer: 1.5.0
- files_readmemd: 1.0.4
- 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
- firstrunwizard: 2.5.0
- flowupload: 0.1.0
- gallery: 18.3.0
- gpxpod: 3.0.3
- groupfolders: 4.0.2
- issuetemplate: 0.5.0
- keeweb: 0.5.1
- logreader: 2.1.0
- lookup_server_connector: 1.4.0
- metadata: 0.9.0
- news: 13.1.6
- nextcloud_announcements: 1.5.0
- notes: 2.6.0
- notifications: 2.4.1
- oauth2: 1.4.2
- password_policy: 1.6.0
- passwords: 2019.6.0
- phonetrack: 0.5.1
- polls: 0.10.2
- privacy: 1.0.0
- provisioning_api: 1.6.0
- radio: 0.6.5
- rainloop: 6.0.2
- recommendations: 0.4.0
- serverinfo: 1.6.0
- sharebymail: 1.6.0
- social: 0.2.3
- spreed: 6.0.1
- support: 1.0.0
- systemtags: 1.6.0
- tasks: 0.10.1
- theming: 1.7.0
- twofactor_backupcodes: 1.5.0
- updatenotification: 1.6.0
- viewer: 1.0.0
- workflowengine: 1.6.0
Disabled:
- encryption
- files_external
- mail
- ocdownloader
- socialsharing_email
- survey_client
- twofactor_totp
- twofactor_u2f
- user_ldap
```
</details>
<details><summary>Configuration (config/config.php)</summary>
```
{
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"nextcloud.hostname.com"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"overwrite.cli.url": "https:\/\/nextcloud.hostname.com",
"dbtype": "mysql",
"version": "16.0.1.1",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_smtpmode": "smtp",
"mail_smtpauthtype": "LOGIN",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"maintenance": false,
"theme": "",
"loglevel": 2,
"updater.release.channel": "stable",
"mail_smtpauth": 1,
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "465",
"mail_smtpsecure": "ssl",
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"app_install_overwrite": [
"data_request"
]
}
```
</details>
**Are you using external storage, if yes which one:** local/smb/sftp/...
**Are you using encryption:** false
**Are you using an external user-backend, if yes which one:** LDAP/ActiveDirectory/Webdav/...
## Client configuration
**Browser:** Chrome/74.0.3729.131
**Operating system:** Windows 1803
## Logs
<details><summary>Web server error log</summary>
```
```
</details>
<details><summary>Nextcloud log</summary>
```
```
</details>
<details><summary>Browser log</summary>
</details>