Buffer is not defined

Hello,

Since I last dropped my node_modules and reinstalled them, an error appeared:

Buffer is not defined

In /modules/angular-auth-oidc-client.es5.js TokenHelperService.urlBase64Decode

The “compiled” code is the following:

    TokenHelperService.prototype.urlBase64Decode = function (str) {
        var /** @type {?} */ output = str.replace('-', '+').replace('_', '/');
        switch (output.length % 4) {
            case 0:
                break;
            case 2:
                output += '==';
                break;
            case 3:
                output += '=';
                break;
            default:
                throw Error('Illegal base64url string!');
        }
        return new Buffer(output, 'base64').toString('binary');
    };

But went I look at the source code, I see :

    urlBase64Decode(str: string) {
        let output = str.replace('-', '+').replace('_', '/');
        switch (output.length % 4) {
            case 0:
                break;
            case 2:
                output += '==';
                break;
            case 3:
                output += '=';
                break;
            default:
                throw Error('Illegal base64url string!');
        }

        return typeof window !== 'undefined' ? window.atob(output) : new Buffer(output, 'base64').toString('binary');
    }

I assume there is a release/publish problem, the package on npm not being the latest version ?

Best regards