Images not showing on public shared folders on NC25

Images not showing on public shared folders

Since we updated to NC25, when a poto folder is shared publicly, its images arent displayed.

Not the miniature nor the image when clicking on it (message: (exclamation icon) Cant load “filename”

The server gets a 404 error in the preview such as: GET /index.php/apps/files_sharing/publicpreview/nWs83LcfjKcSBqm?file=/AMBIENTE0004.jpg&fileId=140597&x=5120&y=2880&a=true HTTP/2.0


Nextcloud version (eg, 20.0.5): 25.0.1
Operating system and version (eg, Ubuntu 20.04): Ubuntu 18.04.6 LTS
Plesk Obsidian 18.0.47
PHP version (eg, 7.4): 8.0.25

The issue you are facing: Images not showing on public shared folders on NC25

Is this the first time you’ve seen this error? (Y/N): Y

Steps to replicate it:

  1. Generate a public link of a folder containing photos
  2. Open the link
  3. Try to view an image without downloading it.

The output of your Nextcloud log in Admin > Logging:
nothing… but the system log give us an 404:

The output of your config.php file in `/path/to/nextcloud` (make sure you remove any identifiable information!):

Nothing but hte system log give us a 404

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

404 GET /index.php/apps/files_sharing/publicpreview/nWs83LcfjKcSBqm?fileId=141224&file=%2FPTO%203190.gif&c=bee3b8293280e8fc09e332a338e61dfe&x=500&y=500 HTTP/2.0```

Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.


Ok, what I tried:

  • updating the file_sharing to the github version (same problem)

Then I found out that the image is displayed under the URL /index.php/apps/files/
But not under /index.php/apps/files_sharing/publicpreview/xxxxx

Tried to create a nginx rule to simply redirect from one route to the other:

location ^~/index.php/apps/files_sharing/publicpreview {

return 301 /index.php/core/preview$request_uri$is_args$args;


BUT that route requires authentication so it only work if you are logged in.

Similar issue here with the same observations, but when sharing a photo album with a public link, then opened in a private browser.

Yes, thats exactly how I tested, also.

“good” to know more people have the same problem, that indicates its not about my installation… but also sorry you are facing this issue.