add hw2

node_modules/chromium-bidi/lib/esm/utils/UrlHelpers.js

@@ -0,0 +1,49 @@
+/*
+ *  Copyright 2024 Google LLC.
+ *  Copyright (c) Microsoft Corporation.
+ *
+ *  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.
+ *
+ */
+/**
+ * A URL matches about:blank if its scheme is "about", its path contains a single string
+ * "blank", its username and password are the empty string, and its host is null.
+ * https://html.spec.whatwg.org/multipage/urls-and-fetching.html#matches-about:blank
+ * @param {string} url
+ * @return {boolean}
+ */
+export function urlMatchesAboutBlank(url) {
+    // An empty string is a special case, and considered to be about:blank.
+    // https://html.spec.whatwg.org/multipage/nav-history-apis.html#window-open-steps
+    if (url === '') {
+        return true;
+    }
+    try {
+        const parsedUrl = new URL(url);
+        const schema = parsedUrl.protocol.replace(/:$/, '');
+        return (schema.toLowerCase() === 'about' &&
+            parsedUrl.pathname.toLowerCase() === 'blank' &&
+            parsedUrl.username === '' &&
+            parsedUrl.password === '' &&
+            parsedUrl.host === '');
+    }
+    catch (err) {
+        // Wrong URL considered do not match about:blank.
+        if (err instanceof TypeError) {
+            return false;
+        }
+        // Re-throw other unexpected errors.
+        throw err;
+    }
+}
+//# sourceMappingURL=UrlHelpers.js.map