fix: [#1352] Fixes problem when the error for the selector :is and :w…

…here without argument was not handled correctly

packages/happy-dom/src/query-selector/SelectorItem.ts

@@ -138,6 +138,8 @@ export default class SelectorItem {
 				case 'nth-of-type':
 				case 'nth-last-child':
 				case 'nth-last-of-type':
+				case 'is':
+				case 'where':
 					if (!pseudo.arguments) {
 						if (this.ignoreErrors) {
 							return null;

packages/happy-dom/test/query-selector/QuerySelector.test.ts

@@ -1376,6 +1376,12 @@ describe('QuerySelector', () => {
 			expect(() => element.matches(':not')).toThrow(
 				new Error(`Failed to execute 'matches' on 'HTMLElement': ':not' is not a valid selector.`)
 			);
+			expect(() => element.matches(':is')).toThrow(
+				new Error(`Failed to execute 'matches' on 'HTMLElement': ':is' is not a valid selector.`)
+			);
+			expect(() => element.matches(':where')).toThrow(
+				new Error(`Failed to execute 'matches' on 'HTMLElement': ':where' is not a valid selector.`)
+			);
 			expect(() => element.matches('div:not')).toThrow(
 				new Error(
 					`Failed to execute 'matches' on 'HTMLElement': 'div:not' is not a valid selector.`
@@ -1389,6 +1395,8 @@ describe('QuerySelector', () => {
 			const element = div.children[0];
 			expect(QuerySelector.matches(element, '1', { ignoreErrors: true })).toBe(null);
 			expect(QuerySelector.matches(element, ':not', { ignoreErrors: true })).toBe(null);
+			expect(QuerySelector.matches(element, ':is', { ignoreErrors: true })).toBe(null);
+			expect(QuerySelector.matches(element, ':where', { ignoreErrors: true })).toBe(null);
 			expect(QuerySelector.matches(element, 'div:not', { ignoreErrors: true })).toBe(null);
 		});
 	});