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-rw-r--r--testing/web-platform/tests/preload/avoid-delaying-onload-link-modulepreload.html22
1 files changed, 22 insertions, 0 deletions
diff --git a/testing/web-platform/tests/preload/avoid-delaying-onload-link-modulepreload.html b/testing/web-platform/tests/preload/avoid-delaying-onload-link-modulepreload.html
new file mode 100644
index 0000000000..df1ac72eb3
--- /dev/null
+++ b/testing/web-platform/tests/preload/avoid-delaying-onload-link-modulepreload.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/preload/resources/preload_helper.js"></script>
+<link rel=modulepreload href="resources/dummy.js?pipe=trickle(d5)">
+<script>
+ setup(() => {
+ const link = window.document.createElement("link");
+ assert_implements(
+ 'relList' in link,
+ 'HTMLLinkElement.relList is not supported');
+
+ assert_implements(
+ link.relList.supports("modulepreload"),
+ 'modulepreload is not supported');
+ });
+
+ promise_test(async t => {
+ await new Promise(r => window.addEventListener("load", r));
+ verifyNumberOfResourceTimingEntries("resources/dummy.js?pipe=trickle(d5)", 0);
+ }, "Fetching modulepreload should not block the window's load event");
+</script>