duckdb Data Explorer opening up blank

[juliasilge]

Originally posted by @mburtin in #9459:

As indicate here, I have encountered an issue with the Data Explorer in the Data View of a CSV file. I already try to reinstall Positron (by clean the cache in AppData) without succes. This has occurred since few versions. When I toggle to Dev mode, the only error that appears in the console after 30 seconds is:

Error: positron-duckdb.dataExplorerRpc not registered within 30 seconds at vscode-file://vscode-app/c:/Users/mburtin/AppData/Local/Programs/Positron/resources/app/out/vs/workbench/workbench.desktop.main.js:714791:18

Positron info:

Positron Version: 2025.10.0 (user setup) build 88
Code - OSS Version: 1.103.0
Commit: 9b22e9b
Date: 2025-09-15T07:32:32.435Z
Electron: 37.2.3
Chromium: 138.0.7204.100
Node.js: 22.17.0
V8: 13.8.500258-electron.0
OS: Windows_NT x64 10.0.22631

Additional note: My university network use a proxy server (I don't know if this could be related). And I don't have much more information about it.

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@mburtin also says this is for a regular local Positron session (not remote SSH) and that this system also exhibits the problem described in #8426. Sadly NO_PROXY = "localhost,127.0.0.1,::1" doesn't resolve the issue.

[juliasilge]

This category of problem may be solved by #5889.

[rlevitin]

I am having the same issue with the same error in the dev console.

Positron Version: 2026.01.0 (user setup) build 147
Code - OSS Version: 1.106.0
Commit: 3290136
Date: 2026-01-06T02:15:44.480Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.22631

[juliasilge]

And are you also on a network that uses a proxy, @rlevitin?

[rlevitin]

Likely. I'm not sure the exact set up but it is on a secured corporate network.

I actually just tested on my personal computer separately on its own network (I'm surprised I hadn't done this before) and it works without issue.

[mburtin]

I don't know if it's related (and can be useful), but the data explorer works normally if I open an R dataframe object, for example. It seems to be specific to raw csv files.