| This page tests whether the CSS 'filter' property is undetectable. If the test passes, you'll see a series of 'PASS' messages below. | |
| PASS: typeof document.body.style.filter should be undefined and is. | |
| PASS: document.body.style.filter ? true : false should be false and is. | |
| PASS: document.body.style.filter == undefined should be true and is. |