observe-003.html - mozsearch

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /resize-observer/observe-003.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>ResizeObserver test: throw exception when observing non-element</title>

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

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

<body>

<div id="log"></div>

<script>

'use strict';

test(() => {

    assert_throws_js(TypeError, _=> {

      let ro = new ResizeObserver(() => {});

      ro.observe({});

});

},

  "throw exception when observing non-element"

);

</script>