Preview error: 501 for Excel and PowerPoint xls,xlsx,ppt,pptx

[baur]

C:\Apps\filebrowser>filebrowser version
FileBrowser Quantum - A modern web-based file manager
        Version          : 0.7.8-beta
        Commit           : 1ce3bf1
        Release Info     : https://github.com/gtsteffaniak/filebrowser/releases/tag/0.7.8-beta

I get 501 error for xls,xlsx,ppt,pptx

2025/06/10 10:06:13 GET     | 501 | [::1]:61273     | admin        | 0ms          | "/api/preview?path= ...
2025/06/10 10:06:37 GET     | 501 | [::1]:61273     | admin        | 0ms          | "/api/preview?path= ...

and black screen

and can't disable preview:

tried this settings

  disablePreviews: true
  disableOfficePreviewExt: "xls,xlsx,ppt,pptx"

Word file and PDF, txt works

[baur]

I'd like to disable preview only for specific file types (.xls, .xlsx, .ppt, .pptx) when preview is not implemented, but keep preview enabled for other supported types such as .doc, .txt, .pdf.

• Do not disable preview globally.
• Disable it only for the mentioned formats until their preview functionality is implemented.

[gtsteffaniak]

Sounds like a good change, thanks for opening the issue and describing it well.

I didn't think too hard about the consequences of disabling the files here.

I also need to had integration tests for all these different preview types.

[baur]

When opening any file with preview, the sidebar closes automatically. However, when previewing a Markdown (.md) file, the sidebar stays open. It would be nice to have same behavior for all previewed files

[gtsteffaniak]

Yes that's something I have wrestled with. I don't know what's best, but I think if sidebar is "sticky" (the pin toggle is enabled), it should show up even for editor and image preview?

Right now it hides in editor and for file preview modes like photos, only office, video.

It creates a bit of inconsistent experience though.

[baur]

should show up even for editor and image preview?

no, would be nice if sidebar closes automatically for MD files too, by this will be same behavior for all files

[gtsteffaniak]

try out 0.7.9 and let me know if it addresses everything

[baur]

0.7.9-beta, same error with xlsx, pptx

C:\Apps\filebrowser>filebrowser version
FileBrowser Quantum - A modern web-based file manager
        Version          : 0.7.9-beta
        Commit           : b5b4c0c
        Release Info     : https://github.com/gtsteffaniak/filebrowser/releases/tag/0.7.9-beta

2025/06/16 08:17:49 GET     | 501 | [::1]:63179     | admin        | 0ms          | "/api/preview?path=...xlsx&key=1706162128365&source=SRC1&inline=true&size=original"
2025/06/16 08:18:09 GET     | 501 | [::1]:63179     | admin        | 0ms          | "/api/preview?path=...pptx&key=1576754740825&source=SRC1&inline=true&size=original"

[baur]

Openned sidebar on preview of Word file

maybe create option that allows show or hide sidebar on preview mode?

[baur]

FileBrowser Quantum - A modern web-based file manager
        Version          : 0.7.10-beta
        Commit           : 0a31603
        Release Info     : https://github.com/gtsteffaniak/filebrowser/releases/tag/0.7.10-beta

• The same 501 error occurs when opening .xlsx and .pptx files.
• The config option disableHideSidebar: true has no effect.

Environment

• OS: Windows 11
• Docker: ❌ Not used
• Executable: filebrowser.exe

[gtsteffaniak]

thanks I will test this on windows soon.