| <!doctype html> |
| <title>CSS Test: matchMedia works on display: none iframes</title> |
| <link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-window-matchmedia"> |
| <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> |
| <link rel="author" title="Mozilla" href="https://mozilla.org"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| function frameLoaded(frame) { |
| test(function() { |
| assert_true(frame.contentWindow.matchMedia("all").matches); |
| }, "matchMedia should work in display: none iframes"); |
| test(function() { |
| assert_true(frame.contentWindow.matchMedia("(min-width: 0)").matches); |
| assert_true(!frame.contentWindow.matchMedia("(min-width: 1px)").matches); |
| }, "matchMedia should assume a 0x0 viewport in display: none iframes"); |
| } |
| </script> |
| <iframe style="display: none" onload="frameLoaded(this)"></iframe> |
