feat(webhooks): add form validation

src/helpers/isValidHttpUrl.ts

@@ -0,0 +1,11 @@
+export function isValidHttpUrl(urlToCheck: string): boolean {
+	let url
+
+	try {
+		url = new URL(urlToCheck)
+	} catch (_) {
+		return false
+	}
+
+	return url.protocol === 'http:' || url.protocol === 'https:'
+}