Different Visitor identifier in Brave browser private window

Scenario

• What's the scenario, what happens and what did you expect to happen?

I'm testing FingerprintJS using the official demo page.

When accessing the page from a regular Brave browser window, FingerprintJS generates one visitorId.

When accessing the same page from a Brave Private Window, FingerprintJS generates a different visitorId.

I expected the same device and browser installation to produce the same visitorId, regardless of whether the page is opened in a regular or private window. If this behavior is expected, I'd appreciate clarification on why the identifiers differ.

Steps to reproduce:

1. Open Brave Browser.
2. Visit https://fingerprintjs.github.io/fingerprintjs/ in a regular window.
3. Note the generated visitorId.
4. Open a Brave Private Window.
5. Visit the same page.
6. Compare the generated visitorId.

Actual result

The visitorId differs between the regular window and the Private Window.

Expected result

I expected the same visitorId to be generated for both windows, or documentation indicating that different identifiers between regular and private browsing are expected.

• Device and browser

  • OS: Windows 10 (64-bit)
  • Browser: Brave Browser

• FingerprintJS Version

  • Latest version available on the official demo page: https://fingerprintjs.github.io/fingerprintjs/

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Fingerprint data

Regular Window

• Visitor ID:
  复制

  61485987a09131062a693e1efba626a3

Private Window

• Visitor ID:
  复制

  63aa838cc7e1abfda2f6a6ed31c0952b

Could you clarify whether this is expected behavior?