firebaseui doesn't work with sessionStorage when localStorage unavailable

[skouny]

• Operating System version: Android 14.0.0
• Browser version: Android WebView 122.0
• Firebase UI version: 6.1
• Firebase SDK version: 10.8

When localStorage unavailable doesn't work with sessionStorage

setPersistence was set to browserSessionPersistence before FirebaseUI init

[jhuleatt]

Hi @skouny, this is interesting. FirebaseUI checks for both sessionStorage and localStorage:

firebaseui-web/javascript/utils/storage.js

Lines 84 to 87 in 5ff6fde

	storage.isAvailable = function() {
	return new goog.storage.mechanism.HTML5LocalStorage().isAvailable() &&
	new goog.storage.mechanism.HTML5SessionStorage().isAvailable();
	};

However, it only seems to use sessionStorage and cookies, without any localStorage at all:

firebaseui-web/javascript/utils/storage.js

Lines 94 to 119 in 5ff6fde

	storage.Key = {
	// Temporary storage.
	PENDING_EMAIL_CREDENTIAL: {
	name: 'pendingEmailCredential',
	storage: storage.temporaryStorage_
	},
	REDIRECT_STATUS: {
	name: 'redirectStatus',
	storage: storage.temporaryStorage_
	},
	REDIRECT_URL: {
	name: 'redirectUrl',
	storage: storage.temporaryStorage_
	},
	// Cookie storage.
	EMAIL_FOR_SIGN_IN: {
	name: 'emailForSignIn',
	storage: new goog.storage.Storage(
	new firebaseui.auth.CookieMechanism(3600, '/'))
	},
	PENDING_ENCRYPTED_CREDENTIAL: {
	name: 'pendingEncryptedCredential',
	storage: new goog.storage.Storage(
	new firebaseui.auth.CookieMechanism(3600, '/'))
	}
	};

Taking away the localStorage check seems like the right move to me. The codebase will need another look to confirm that localStorage really isn't used, though. I'll mark this as a bug.

[nkumawat34]

Can I work on this issue..