Log messages are gibberish

[vvolodin]

Core Library

MSAL.js (@azure/msal-browser)

Core Library Version

5.3.0

Wrapper Library

MSAL Angular (@azure/msal-angular)

Wrapper Library Version

none

Public or Confidential Client?

Public

Description

Log messages are minified in the output source code, example from EventHandler.mjs:

this.logger.verbose("1cnec4", "");

How do I decode these?

Error Message

No response

MSAL Logs

No response

Network Trace (Preferrably Fiddler)

• Sent
• Pending

MSAL Configuration

const msalConfig = {
    auth: {
        clientId: serverVars.clientId,
        authority: 'https://login.microsoftonline.com/common',
        redirectUri: serverVars.redirectUri,
        clientCapabilities: ['CP1'] // This lets the resource server know that this client can handle claim challenges.
    },
    cache: {
        cacheLocation: 'localStorage',
        storeAuthStateInCookie: false
    }
}

Relevant Code Snippets

export function loggerCallback(level: LogLevel, message: string, containsPii: boolean) {
    console.log(message);
}

Reproduction Steps

1. Use msal-browser
2. Enable logging
3. Get minified messages

Expected Behavior

1. Use msal-browser
2. Enable logging
3. Be able to read and understand log messages

Identity Provider

Entra ID (formerly Azure AD) / MSA

Browsers Affected (Select all that apply)

Chrome

Regression

No response

[sameerag]

log minification is introduced in msal-v5 by design. Please check: https://github.com/AzureAD/microsoft-authentication-library-for-js/blob/dev/lib/msal-browser/docs/v4-migration.md#console-logging-changes

[vvolodin]

so it's impossible to debug in the browser's console window now?