[Bugs] "test-scsi": {

**Mood:** 😔
**Category:** Bugs

"test-scsi": {
"tools": ["*"],
"type": "http",
"url": "https://example.internal/mcp",
"oauthClientId": "",
"auth": {
"redirectPort": 33418
}
}

This will get a "OAuth authentication failed for test-scsi" using Copilot Desktop, but it'll work perfectly when using Copilot CLI.

---
| Field | Value |
| --- | --- |
| App version | 1.0.14 |
| OS | macOS 26.5.1 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Day 2 (Week 1) |

Start by reproducing the OAuth failure in Copilot Desktop with the provided "test-scsi" HTTP configuration on macOS, then compare the same configuration with Copilot CLI. Confirm the issue is resolved when the configuration authenticates successfully in Copilot Desktop as it does in the CLI.

Written by the indexing model from the issue text.