File: sandbox_004.htm

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<!DOCTYPE html>
<meta charset="utf-8">
<title>Sandbox: Block plugins inside iframe with sandbox attribute</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<!--
  https://github.com/whatwg/html/issues/3958
  https://github.com/whatwg/html/pull/6946
-->

<iframe sandbox="allow-same-origin" src="support/iframe_sandbox_004.htm" height="400" width ="600"></iframe>

<script>
"use strict";
setup({ explicit_done: true });

window.onload = () => {
  test(() => {
    const object = document.querySelector("iframe").contentWindow.document.querySelector("object");
    const rect = object.getBoundingClientRect();
    assert_less_than(rect.width, 300);
    assert_less_than(rect.height, 300);
  }, "Fallback content is always displayed for sandboxed PDFs");
  done();
};
</script>