use tagsinput for #5439 instead

public/src/admin/settings/general.js

@@ -17,6 +17,11 @@ define('admin/settings/general', ['admin/settings'], function () {
 		$('button[data-action="removeOgImage"]').on('click', function () {
 			$('input[data-field="removeOgImage"]').val('');
 		});
+
+		$('[data-field-type="tagsinput"]').tagsinput({
+			confirmKeys: [13, 44],
+			trimValue: true,
+		});
 	};
 
 	return Module;

src/views/admin/settings/general.tpl

@@ -125,8 +125,8 @@
 			</div>
 
 			<div class="form-group">
-				<label for="outgoingLinks:whitelist">[[admin/settings/general:outgoing-links.whitelist]]</label>
+				<label for="outgoingLinks:whitelist">[[admin/settings/general:outgoing-links.whitelist]]</label><br />
-				<input id="outgoingLinks:whitelist" type="text" class="form-control" placeholder="subdomain.domain.com, anotherdomain.com" data-field="outgoingLinks:whitelist" />
+				<input id="outgoingLinks:whitelist" type="text" class="form-control" placeholder="subdomain.domain.com" data-field="outgoingLinks:whitelist" data-field-type="tagsinput" />
 			</div>
 		</form>
 	</div>