<![CDATA[Bug: External Share Links - Files Cannot Be Viewed/Previewed in Browser]]>Summary

When a personal folder is shared via a public link, external recipients can view the folder structure and download files, but they cannot preview or open files within the browser. Attempting to do so triggers server errors, broken image links, or forced downloads.

Environment

Instance: Cubby 2.7.5
Integration: Collabora Online 25.04.9.2.1
OS: Mac OS Tahoe 26.3
Browser: Safari / Brave Browser

Steps to Reproduce

  • Create a new personal folder and upload various file types (PDF, Image, Excel).
  • Generate a public share link for the folder.
  • Open the link in an Incognito/Private browser window (simulating an external entity).
  • Attempt to open/view any of the files directly in the browser.

Actual Results

PDF Files: Fails to open with a JSON error:

4c82a4f9-6394-4ff4-9789-436427329bc1-image.jpeg

Images: The image fails to render, showing only a broken image/missing asset icon.

0627a9f2-6f23-46bc-b907-d2155b67f796-image.jpeg

Excel/Office Files: The browser prompts for a download immediately instead of opening the file in the connected Collabora instance.

d0740c14-3fcc-48b6-9c1b-4e484ff47e6c-image.jpeg

Expected Results

External users should be able to preview PDFs and images directly in the browser and view Office documents via the Collabora integration without being forced to download them first.

]]>https://forum.cloudron.io/topic/15168/bug-external-share-links-files-cannot-be-viewed-previewed-in-browserRSS for NodeSat, 13 Jun 2026 19:15:35 GMTMon, 02 Mar 2026 17:11:10 GMT60<![CDATA[Reply to Bug: External Share Links - Files Cannot Be Viewed/Previewed in Browser on Tue, 03 Mar 2026 07:47:35 GMT]]>This is fixed with https://git.cloudron.io/apps/cubby/-/commit/7321ebb59d1f74ae9cb6d61e8f6cd7324bfa9c6e

]]>https://forum.cloudron.io/post/121139https://forum.cloudron.io/post/121139Tue, 03 Mar 2026 07:47:35 GMT<![CDATA[Reply to Bug: External Share Links - Files Cannot Be Viewed/Previewed in Browser on Mon, 02 Mar 2026 20:54:12 GMT]]>good catch, haven't tested the collabora integration, but probably just an oversight. Will fix this also

]]>https://forum.cloudron.io/post/121121https://forum.cloudron.io/post/121121Mon, 02 Mar 2026 20:54:12 GMT<![CDATA[Reply to Bug: External Share Links - Files Cannot Be Viewed/Previewed in Browser on Mon, 02 Mar 2026 20:13:50 GMT]]>Thanks for the quick turnaround! PDFs and image are working fine but office files are still prompting a download instead of opening. I wonder if this is a limitation of Collabora or if there is permission issue somewhere? I have tried both read only and read-write external share links.

]]>https://forum.cloudron.io/post/121118https://forum.cloudron.io/post/121118Mon, 02 Mar 2026 20:13:50 GMT<![CDATA[Reply to Bug: External Share Links - Files Cannot Be Viewed/Previewed in Browser on Mon, 02 Mar 2026 19:23:48 GMT]]>New package is published with those things fixed.

]]>https://forum.cloudron.io/post/121117https://forum.cloudron.io/post/121117Mon, 02 Mar 2026 19:23:48 GMT<![CDATA[Reply to Bug: External Share Links - Files Cannot Be Viewed/Previewed in Browser on Mon, 02 Mar 2026 18:20:11 GMT]]>Currently sharing folders/files for external users via share link, always creates read-only shares. To add read-write ability I have created https://git.cloudron.io/apps/cubby/-/issues/101

]]>https://forum.cloudron.io/post/121113https://forum.cloudron.io/post/121113Mon, 02 Mar 2026 18:20:11 GMT<![CDATA[Reply to Bug: External Share Links - Files Cannot Be Viewed/Previewed in Browser on Mon, 02 Mar 2026 18:12:42 GMT]]>This is mostly fixed now with https://git.cloudron.io/apps/cubby/-/commit/cc04b78f7117d32d2b019ab2849c5c8ef3c4483e

Still fixing the ability for an external user to rename toplevel files in a share.

]]>https://forum.cloudron.io/post/121112https://forum.cloudron.io/post/121112Mon, 02 Mar 2026 18:12:42 GMT<![CDATA[Reply to Bug: External Share Links - Files Cannot Be Viewed/Previewed in Browser on Mon, 02 Mar 2026 17:52:33 GMT]]>Thanks for all the issue reports. So far the app was mostly developed for my own use-cases, but always with the intention to support a wide variety, so you are hitting those paths which I don't use. But we will fix all those.

]]>https://forum.cloudron.io/post/121107https://forum.cloudron.io/post/121107Mon, 02 Mar 2026 17:52:33 GMT