// Copyright 2021-2024 The Connect Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
 * Asserts that the fetch API is available.
 */
function assertFetchApi() {
    try {
        new Headers();
    }
    catch (_) {
        throw new Error("connect-web requires the fetch API. Are you running on an old version of Node.js? Node.js is not supported in Connect for Web - please stay tuned for Connect for Node.");
    }
}

export { assertFetchApi };
