Having a issue with attaching devcontainer

Bug Reports
1

Describe the Bug

I have the following extensions installed in Cursor:

  • anysphere.remote-containers

  • ms-vscode.remote-server

I’m starting a devcontainer using the Devcontainer CLI, and I’m trying to open Cursor attached to this running devcontainer using the following script:

CONF=$(printf '{"settingType":"container", "containerId":"%s"}' "$devcontainer_id")
hex_config=$(printf "$CONF" | od -A n -t x1 | tr -d '[\n\t ]')
cursor --folder-uri "vscode-remote://attached-container+${hex_config}${folder}"

Cursor launches, but it doesn’t open the devcontainer. In the Extension Host Output, I see this error:

2025-07-07 20:23:46.988 [info] [resolveAuthority(attached-container,1)][0ms] activating resolver for attached-container+7b2273657474696e67547...
2025-07-07 20:23:46.988 [error] [resolveAuthority(attached-container,1)][0ms] no resolver for attached-container undefined

Any idea how to make this work with Cursor?
Works fine for vscode tho.

Steps to Reproduce

  1. Start any devcontainer useing devcontainer CLI
  2. Open cursor with setting provided above using containerId

Expected Behavior

While the attached-container authority works as expected in VS Code, it throws an error and fails to resolve in Cursor.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.2.1
VSCode Version: 1.99.3
Commit: 031e7e0ff1e2eda9c1a0f5df67d44053b059c5d0
Date: 2025-07-03T06:06:37.704Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.5.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

3

For cursor i had it working using dev-container instead of attached-container, as cursor does not support attached-container resolver.

CONF=$(printf '{"settingType":"container", "containerId":"%s"}' "$devcontainer_id")
hex_config=$(printf "$CONF" | od -A n -t x1 | tr -d '[\n\t ]')
cursor --folder-uri "vscode-remote://dev-container+${hex_config}${folder}"

Is there any plan on when cursor will support attached-container resolver?

5

Hi @Shashwat_Triparthi, could you upgrade to version 1.0.10 of the extension? This version supports the attached-container scheme.

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