Office Word add-in – Msal using login redirect not working on Mac (Safari webkit 1.0) - safari

Question

We’re using Azure B2C to authenticate the users in the Word add-in. The library in Angular (14.1.2) that we use is MSAL which works as expected on Windows.
However, when using it on Mac, the redirect inside the add-in dialog gets stuck and doesn’t go to the Azure B2C page. It writes the cookies and local storage, but never redirects.
angular 14.1.2
azure/msal-angular 2.5.1
azure/msal-browser 2.32.1
Call
this.msalService.loginRedirect().subscribe();
Msal Configuration
`export function msalInstanceFactory(appConfigService: AppConfigService): IPublicClientApplication {
const appConfig = appConfigService.config;
return new PublicClientApplication({
auth: {
clientId: appConfig.aadB2CClientId,
authority: 'https://${appConfig.aadB2CDomain}/${appConfig.aadB2CTenant}/${appConfig.aadB2CSIPolicy}',
redirectUri: appConfig.aadB2CRedirectUri,
postLogoutRedirectUri: getLocationOriginWithPath('logout'),
knownAuthorities: [appConfig.aadB2CDomain],
navigateToLoginRequestUrl: false,
},
cache: {
cacheLocation: BrowserCacheLocation.LocalStorage,
storeAuthStateInCookie: isIE,
},
system: {
loggerOptions: {
loggerCallback: msalLoggerCallback,
logLevel: LogLevel.Verbose,
piiLoggingEnabled: true,
},
},
});
}
export function msalGuardConfigFactory(appConfigService: AppConfigService): MsalGuardConfiguration {
return {
interactionType: InteractionType.Redirect,
authRequest: {
scopes: appConfigService.config.aadB2CConsentScopes,
loginHint: getLoginHint(),
},
};
}`
The funny fact is that if I set a break point just before the execution of the loginRedirect and then press continue it works. So, I tried to set a timeout before that to see if it works but it doesn't.
Also tried to disable ITP security in Safari, but didn't take any effect.