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Diffstat (limited to 'testing/web-platform/tests/preload/single-download-late-used-preload.html')
| -rw-r--r-- | testing/web-platform/tests/preload/single-download-late-used-preload.html | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/testing/web-platform/tests/preload/single-download-late-used-preload.html b/testing/web-platform/tests/preload/single-download-late-used-preload.html new file mode 100644 index 0000000000..bf02fdb636 --- /dev/null +++ b/testing/web-platform/tests/preload/single-download-late-used-preload.html @@ -0,0 +1,23 @@ +<!DOCTYPE html> +<title>Ensure preloaded resources are not downloaded again when used</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/preload/resources/preload_helper.js"></script> +<link rel=preload href="resources/square.png?pipe=trickle(d1)" as=image> +<script> + setup({ single_test: true }); + var link = document.getElementsByTagName("link")[0] + assert_equals(link.as, "image"); + link.addEventListener("load", () => { + verifyPreloadAndRTSupport(); + verifyNumberOfResourceTimingEntries("resources/square.png?pipe=trickle(d1)", 1); + var img = document.createElement("img"); + img.src = "resources/square.png?pipe=trickle(d1)"; + img.onload = () => { + verifyLoadedAndNoDoubleDownload("resources/square.png?pipe=trickle(d1)"); + done(); + }; + document.body.appendChild(img); + }); +</script> +<body> |