Unicode string(japanese-strting) use atob is getting error . (Regression)

[magnet163]

Core Library

MSAL.js (@azure/msal-browser)

Core Library Version

3.1.0

Wrapper Library

MSAL Angular (@azure/msal-angular)

Wrapper Library Version

3.0.4

Public or Confidential Client?

Public

Description

The following error has recurred.
Since @azure/msal-browser 3.1.0, I am getting occasional errors when Japanese characters are included.
#985

Error Message

1694663603412.log

Msal Logs

No response

MSAL Configuration

auth: {
   clientId: "XXXXXX",
   authority: "https://login.microsoftonline.com/common/",
   redirectUri: "/auth/signin",
   postLogoutRedirectUri: "/auth/signin"
 },
 cache: {
   cacheLocation: BrowserCacheLocation.LocalStorage,
   storeAuthStateInCookie: false
 },
 system: {
   allowNativeBroker: false
 }

Relevant Code Snippets

import { CommonModule } from '@angular/common';
import { ChangeDetectionStrategy, Component, inject } from '@angular/core';
import { MsalService } from '@azure/msal-angular';

@Component({
  selector: 'app-signin',
  standalone: true,
  imports: [
    CommonModule,
  ],
  templateUrl: './signin.component.html',
  styleUrls: ['./signin.component.scss'],
  changeDetection: ChangeDetectionStrategy.OnPush
})
export class SigninComponent {
  readonly #msalService = inject(MsalService);

  constructor() {
    this.#msalService.handleRedirectObservable().subscribe();
  }

  signIn() {
    this.#msalService.loginPopup()
      .subscribe(res => {
      });
  }
}

Reproduction Steps

1. Signin Japanese DisplayName account.
2. Execute signIn method.

However, it does not always result in an error, and in rare cases it may succeed.

Expected Behavior

Non Error decode.

Identity Provider

Azure AD / MSA

Browsers Affected (Select all that apply)

Chrome, Firefox, Edge

Regression

@azure/msal-browser 3.0.2

Source

External (Customer)

[microsoft-github-policy-service]

This issue requires attention from the MSAL.js team and has not seen activity in 5 days. @hectormmg please follow up.

[microsoft-github-policy-service]

This issue requires attention from the MSAL.js team and has not seen activity in 5 days. @hectormmg please follow up.

[microsoft-github-policy-service]

This issue requires attention from the MSAL.js team and has not seen activity in 5 days. @hectormmg please follow up.

[microsoft-github-policy-service]

This issue requires attention from the MSAL.js team and has not seen activity in 5 days. @hectormmg please follow up.

[tnorling]

This has been fixed in version 3.2.0