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diff --git a/testing/web-platform/tests/html/dom/render-blocking/parser-inserted-stylesheet-link.html b/testing/web-platform/tests/html/dom/render-blocking/parser-inserted-stylesheet-link.html
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+++ b/testing/web-platform/tests/html/dom/render-blocking/parser-inserted-stylesheet-link.html
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+<!doctype html>
+<title>Parser-inserted stylesheet links are implicitly render-blocking</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/test-render-blocking.js"></script>
+<script>
+// Test case must be set up before the stylesheet, because the stylesheet is
+// script-blocking, which means we can't set it up while the stylesheet is
+// loading.
+test_render_blocking(() => {
+ let color = getComputedStyle(document.querySelector('.target')).color;
+ assert_equals(color, 'rgb(255, 0, 0)');
+}, 'Render-blocking stylesheet is applied');
+</script>
+<link rel="stylesheet" href="support/target-red.css?pipe=trickle(d1)">
+<div class="target">
+ This should be red
+</div>