remove-attr-script-keeps-blocking.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/dom/render-blocking/remove-attr-script-keeps-blocking.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Synchronous script element still blocks rendering after removing `blocking=render`</title>

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

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

<script src="support/test-render-blocking.js"></script>

<script>

// Test script must be added before the synchronous script because the

// synchronous script is parser-blocking.

promise_setup(async () => {

  let script = await nodeInserted(document.head, node => node.id === 'script');

  script.blocking = '';

  // Also inserts some contents for non-compliant UA to render

  document.body = document.createElement('body');

  document.body.appendChild(document.createTextNode('Some text'));

});

test_render_blocking(

  () => assert_equals(window.dummy, 1),

  'Render-blocking script is loaded and evaluated');

</script>

<script id="script" blocking="render" src="support/dummy-1.js?pipe=trickle(d1)"></script>