supports-script.tentative.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-env/supports-script.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

  <head>

    <link rel="help" href="https://drafts.csswg.org/css-env-1/">

    <title>Test that CSS env vars work with CSS.supports</title>

    <script src="/resources/testharness.js"></script>

    <script src="/resources/testharnessreport.js"></script>

  </head>

  <body>

    <script>

    test(() => {

      assert_true(CSS.supports("background: env(test)"));

      assert_true(CSS.supports("background", "env(test)"));

      assert_true(CSS.supports("background", "env(test, 10px)"));

      assert_true(CSS.supports("background", "foobar(env(test))"));

      assert_false(CSS.supports("background", "env()"));

      assert_true(CSS.supports("background", "env(test, )"));

      assert_true(CSS.supports("background", "env(test,)"));

});

    </script>

  </body>

</html>