def crossdomain(origin=None, methods=None, headers=None, max_age=21600, attach_to_all=True, automatic_options=True):
    if (methods is not None):
        methods = ', '.join(sorted((x.upper() for x in methods)))
    if ((headers is not None) and (not isinstance(headers, basestring))):
        headers = ', '.join((x.upper() for x in headers))
    if (not isinstance(origin, basestring)):
        origin = ', '.join(origin)
    if isinstance(max_age, timedelta):
        max_age = max_age.total_seconds()

    def get_methods():
        if (methods is not None):
            return methods
        options_resp = current_app.make_default_options_response()
        return options_resp.headers['allow']

    def decorator(f):

        def wrapped_function(*args, **kwargs):
            if (automatic_options and (request.method == 'OPTIONS')):
                resp = current_app.make_default_options_response()
            else:
                resp = make_response(f(*args, **kwargs))
            if ((not attach_to_all) and (request.method != 'OPTIONS')):
                return resp
            h = resp.headers
            h['Access-Control-Allow-Origin'] = origin
            h['Access-Control-Allow-Methods'] = get_methods()
            h['Access-Control-Max-Age'] = str(max_age)
            h['Access-Control-Allow-Credentials'] = 'true'
            h['Access-Control-Allow-Headers'] = 'Origin, X-Requested-With, Content-Type, Accept, Authorization'
            if (headers is not None):
                h['Access-Control-Allow-Headers'] = headers
            return resp
        f.provide_automatic_options = False
        return update_wrapper(wrapped_function, f)
    return decorator
def crossdomain(origin=None, methods=None, headers=None, max_age=21600, attach_to_all=True, automatic_options=True):
    if (methods is not None):
        methods = ', '.join(sorted((x.upper() for x in methods)))
    if ((headers is not None) and (not isinstance(headers, basestring))):
        headers = ', '.join((x.upper() for x in headers))
    if (not isinstance(origin, basestring)):
        origin = ', '.join(origin)
    if isinstance(max_age, timedelta):
        max_age = max_age.total_seconds()

    def get_methods():
        if (methods is not None):
            return methods
        options_resp = current_app.make_default_options_response()
        return options_resp.headers['allow']

    def decorator(f):

        def wrapped_function(*args, **kwargs):
            if (automatic_options and (request.method == 'OPTIONS')):
                resp = current_app.make_default_options_response()
            else:
                resp = make_response(f(*args, **kwargs))
            if ((not attach_to_all) and (request.method != 'OPTIONS')):
                return resp
            h = resp.headers
            h['Access-Control-Allow-Origin'] = origin
            h['Access-Control-Allow-Methods'] = get_methods()
            h['Access-Control-Max-Age'] = str(max_age)
            h['Access-Control-Allow-Credentials'] = 'true'
            h['Access-Control-Allow-Headers'] = 'Origin, X-Requested-With, Content-Type, Accept, Authorization'
            if (headers is not None):
                h['Access-Control-Allow-Headers'] = headers
            return resp
        f.provide_automatic_options = False
        return update_wrapper(wrapped_function, f)
    return decorator