third_party/WebKit/LayoutTests/http/tests/prefetch/prefetch_added_after_onload.html - Issue 2751973005: Link prefetch fetches deferred until onload

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Side by Side Diff: third_party/WebKit/LayoutTests/http/tests/prefetch/prefetch_added_after_onload.html

Issue 2751973005: Link prefetch fetches deferred until onload

Patch Set: Fixed post onload addition and crash Created 3 years, 9 months ago

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	1 <!DOCTYPE html>

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

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

	4 <script>

	5 var t = async_test('Makes sure that prefetched resources are downloaded when added after window.onload fired.');

	6 </script>

	7 <body>

	8 <script>

	9 function loadedPrefetch() {

	10 var entries = performance.getEntriesByType("resource");

	11 for (var i = 0; i < entries.length; ++i) {

	12 if (entries[i].name.indexOf("prefetch") != -1)

	13 return true;

	14 }

	15 return false;

	16 }

	17 window.addEventListener("load", t.step_func(function() {

	18 var link = document.createElement("link");

	19 link.rel = "prefetch";

	20 link.href = "../resources/slow-script.pl?delay=100;prefetch";

	21 document.body.appendChild(link);

	22 var loaded = loadedPrefetch();

	23 assert_false(loaded);

	24 t.step_timeout(function() {

	25 assert_true(loadedPrefetch());

	26 t.done();

	27 }, 400);

	28 }));

	29 </script>

	30 </body>

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