Merge pull request #1402 from guangyang1206/fix/extract-domain-helper-1368

Fix/extract domain helper 1368

surfsense_web/lib/url.ts

@@ -0,0 +1,14 @@
+/**
+ * Extract a normalized hostname from a URL. Strips a leading `www.`.
+ * Returns `undefined` if the input is not a parseable URL.
+ *
+ * This is the canonical replacement for the four previously-duplicated
+ * `extractDomain` helpers that had subtly different error fallbacks.
+ */
+export function tryGetHostname(url: string): string | undefined {
+    try {
+        return new URL(url).hostname.replace(/^www\./, "");
+    } catch {
+        return undefined;
+    }
+}