src/vs/workbench/services/authentication/browser/authenticationService.ts/readAllowedExtensions
export function readAllowedExtensions(storageService: IStorageService, providerId: string, accountName: string): AllowedExtension[] {
	let trustedExtensions: AllowedExtension[] = [];
	try {
		const trustedExtensionSrc = storageService.get(`${providerId}-${accountName}`, StorageScope.APPLICATION);
		if (trustedExtensionSrc) {
			trustedExtensions = JSON.parse(trustedExtensionSrc);
		}
	} catch (err) { }

	return trustedExtensions;
}