<!doctype html> <title>Test whether it can access a filed in MediaList with normal privilege after accessing with chrome privilege.</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <style> @media screen and (max-width: 800px) { body { background-color: lime; } } </style> <script> "use strict"; const chromeDocument = SpecialPowers.wrap(document); assertMediaText(chromeDocument); assertMediaText(document); function assertMediaText(doc) { const stylesheet = doc.styleSheets[0]; const rule = stylesheet.cssRules[0]; const media = rule.media; is(rule.media.mediaText, "screen and (max-width: 800px)"); } </script>