Firestore error link points to wrong database when using Named Databases

[Fernando-Villela-CBTKD]

Operating System

Ubuntu 24.04

Environment (if applicable)

Chrome 141.0.7390.122; react.js 19.2.0

Firebase SDK Version

12.4.0

Firebase SDK Product(s)

Firestore

Project Tooling

React App

Detailed Problem Description

When using Named Databases, the error link generated by Firestore for missing composite indexes points to the default database instead of the Named Database.

Environment:

• firebase: 12.4.0
• Platform: Web (JavaScript SDK)
• Feature: Named Databases

Steps to reproduce:

1. Create a Named Database (e.g., "cbtkdeventos")
2. Initialize Firestore with Named Database: getFirestore(app, 'cbtkdeventos')
3. Execute a query that requires a composite index
4. The error link uses /v1/r/project/.../databases/cbtkdeventos/... which incorrectly opens the default database

Expected behavior:
The link should use /u/0/project/.../databases/cbtkdeventos/... to open the correct Named Database

Workaround:
Manually replace /v1/r/ with /u/0/ in the error URL

Steps and code to reproduce issue

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[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[looptheloop88]

Hi @Fernando-Villela-CBTKD, apologies for the delay in response. I tried to reproduce the issue using SDK versions 12.4.0 and 12.5.0, but I did not encounter the problem. The link for creating indexes appears correct and successfully opens the intended Firestore named database upon clicking.

Could you share a sample project that I can use to replicate the issue? Thank you!