https://343coaching.com/wp-content/mu-plugins/rainmaker/library/in…/js/comment-url-validation.js?ver=3.8.3.1

1/**
2 * Comment URL Validation
3 * 
4 * Adds front-end validation for comment form URL field.
5 * Validates URL format before submission to prevent sending invalid URLs to server.
6 */
7
8(function() {
9	// Wait for DOM to be ready
10	document.addEventListener('DOMContentLoaded', function() {
11		// Find the comment form
12		var commentForm = document.getElementById('commentform');
13		if (!commentForm) {
14			return;
15		}
16
17		// Find the URL input field
18		var urlInput = document.getElementById('url');
19		if (!urlInput) {
20			return;
21		}
22
23		urlInput.addEventListener('blur', function() {
24			var urlValue = this.value.trim();
25
26			if (urlValue === '') {
27				this.setCustomValidity('');
28				return;
29			}
30
31			// Require protocol
32			if (!/^https?:\/\//i.test(urlValue)) {
33				this.setCustomValidity('Please enter a valid website URL (e.g. https://example.com)');
34				return;
35			}
36
37			var domain = urlValue.replace(/^https?:\/\//i, '').split('/')[0].split('?')[0].split('#')[0];
38
39			var domainRegex = /^[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9]?(\.[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9]?)*\.[a-zA-Z]{2,}$/;
40
41			if (!domainRegex.test(domain)) {
42				this.setCustomValidity('Please enter a valid website URL (e.g. https://example.com)');
43			} else {
44				this.setCustomValidity('');
45			}
46		});
47	});
48})();