already-loaded-image-sync-width.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/the-img-element/already-loaded-image-sync-width.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf-8">

<title>Image dimensions are available synchronously after changing src to an already-loaded image</title>

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

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

<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1797798">

<img id="existing">

<script>

  let src = "/images/green.png";

  let existing = document.getElementById("existing");

  async_test(function(t) {

    let tmp = document.createElement("img");

    tmp.src = src;

    tmp.onload = t.step_func_done(function() {

      existing.src = src;

      assert_equals(existing.width, 100);

      assert_equals(existing.height, 50);

});

});

</script>