Fix issue where we ping an endpoint that hasn't been implemented

[maneesht]

When attempting to get cookies for the storage emulator in Firebase Studio, the endpoint returns with 501 because / hasn't been implemented. Instead, we should be calling /b.

[changeset-bot]

🦋 Changeset detected

Latest commit: 869a49e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@firebase/storage	Patch
firebase	Patch
@firebase/storage-compat	Patch

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[github-actions]

Vertex AI Mock Responses Check ⚠️

A newer major version of the mock responses for Vertex AI unit tests is available. update_vertexai_responses.sh should be updated to clone the latest version of the responses: v13.0

[google-oss-bot]

Size Report ¹

Affected Products

• @firebase/storage

  Type	Base (c0617a3)	Merge (bc67dbd)	Diff
  browser	58.5 kB	58.5 kB	+2 B (+0.0%)
  main	60.0 kB	60.0 kB	+2 B (+0.0%)
  module	58.5 kB	58.5 kB	+2 B (+0.0%)

• bundle

  Type	Base (c0617a3)	Merge (bc67dbd)	Diff
  storage (getBytes)	47.2 kB	47.2 kB	+2 B (+0.0%)
  storage (getDownloadURL)	49.2 kB	49.2 kB	+2 B (+0.0%)
  storage (getMetadata)	48.7 kB	48.7 kB	+2 B (+0.0%)
  storage (list + listAll)	48.1 kB	48.1 kB	+2 B (+0.0%)
  storage (updateMetadata)	49.0 kB	49.0 kB	+2 B (+0.0%)
  storage (uploadBytes)	53.8 kB	53.8 kB	+2 B (+0.0%)
  storage (uploadBytesResumable)	63.8 kB	63.8 kB	+2 B (+0.0%)
  storage (uploadString)	54.0 kB	54.0 kB	+2 B (+0.0%)

• firebase

  Type	Base (c0617a3)	Merge (bc67dbd)	Diff
  firebase-compat.js	802 kB	802 kB	+4 B (+0.0%)
  firebase-storage-compat.js	44.2 kB	44.2 kB	+4 B (+0.0%)
  firebase-storage.js	51.1 kB	51.1 kB	+2 B (+0.0%)

Test Logs

• Base (c0617a3): https://github.com/firebase/firebase-js-sdk/actions/runs/15477957167
• Merge (bc67dbd): https://github.com/firebase/firebase-js-sdk/actions/runs/15495244368

1. https://storage.googleapis.com/firebase-sdk-metric-reports/dgKBWSF4Dn.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

• @firebase/storage

  • connectStorageEmulator

    Size

    Type	Base (c0617a3)	Merge (bc67dbd)	Diff
    size	11.8 kB	11.8 kB	+2 B (+0.0%)
    size-with-ext-deps	34.8 kB	34.8 kB	+2 B (+0.0%)

  • getStorage

    Size

    Type	Base (c0617a3)	Merge (bc67dbd)	Diff
    size	12.0 kB	12.0 kB	+2 B (+0.0%)
    size-with-ext-deps	42.7 kB	42.7 kB	+2 B (+0.0%)

Test Logs

• Base (c0617a3): https://github.com/firebase/firebase-js-sdk/actions/runs/15477957167
• Merge (bc67dbd): https://github.com/firebase/firebase-js-sdk/actions/runs/15495244368

1. https://storage.googleapis.com/firebase-sdk-metric-reports/oyJqYa8pjV.html