devicePixelRatio-undisplayed-iframe.tentative.html

mozilla-central/testing/web-platform/tests/css/cssom-view/devicePixelRatio-undisplayed-iframe.tentative.html

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Test Info:

This WPT test may be referenced by the following Test IDs:
- /css/cssom-view/devicePixelRatio-undisplayed-iframe.tentative.html - WPT Dashboard Interop Dashboard

<!doctype html>

<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-window-devicepixelratio">

<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1602347">

<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">

<link rel="author" href="https://mozilla.org" title="Mozilla">

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

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

<title>window.devicePixelRatio in an undisplayed iframe matches the dpi of the parent document</title>

<div style="display: none">

  <iframe src="about:blank"></iframe>

</div>

<script>

onload = function() {

  test(function() {

    let win = document.querySelector("iframe").contentWindow;

    assert_equals(win.devicePixelRatio, window.devicePixelRatio, "window.devicePixelRatio in an undisplayed iframe matches the dpi of the parent document");

});

};

</script>