File: object-image-display-none-loading.html

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<!DOCTYPE html>
<link rel="help" href="https://crbug.com/41477900">
<link rel="help" href="https://html.spec.whatwg.org/multipage/iframe-embed-object.html#the-object-element">
<!--
  Based on step 2 of the spec algorithm:
  "... if the element is not being rendered,
  then jump to the step below labeled fallback."
-->

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

<script>
  const t = async_test(
    "Test that object image not displayed is not loaded unnecessarily."
  );

  function obj_onload() {
    t.unreached_func(
      "Object image not displayed on screen should not load."
    )();
  }

  t.step_timeout(() => {
    t.done();
  }, 2000);
</script>

<style>
  #target {
    display: none;
  }
</style>

<object
  data="/images/red.png"
  id="target"
  onload="obj_onload();"
  type="image/png"
>
  Fallback Text
</object>