<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>removing content attribute</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <meta name="viewport" content="width=400">
  <meta name="viewport" content="width=800">
  <script src="viewport_helpers.js"></script>
</head>
<body>
  <script>
    "use strict";

    add_task(async function multiple_viewport_tags() {
      await SpecialPowers.pushPrefEnv(scaleRatio(1.0));

      let info = getViewportInfo(800, 480);
      // The latter meta viewport tag is used.
      is(info.width, 800, "width should be 800");

      const secondMeta =
          document.querySelector("meta[name=viewport][content='width=800']");
      secondMeta.removeAttribute("content");

      info = getViewportInfo(800, 480);
      // The latter meta viewport tag is still used.
      is(info.width, 800, "width should be 800");
    });
  </script>
</body>
</html>
