[compression-dictionary] Add WPT tests for load/error events on a <link rel=compression-dictionary>

fred-wang · chromium-wpt-export-bot · commit 98fb56764b46 · 2026-07-10T17:09:32.000-07:00
This is currently not specified but is proposed at whatwg/html#11620 Bug: 522338661, 40255884 Change-Id: I9df45092e344588d4dc06cea0fc2fd4daf84caec Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8036725 Reviewed-by: Patrick Meenan <pmeenan@chromium.org> Commit-Queue: Frédéric Wang Nélar <fwang@igalia.com> Cr-Commit-Position: refs/heads/main@{#1660503}
diff --git a/fetch/compression-dictionary/dictionary-fetch-with-link-element-events.tentative.https.html b/fetch/compression-dictionary/dictionary-fetch-with-link-element-events.tentative.https.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./resources/compression-dictionary-util.sub.js"></script>
+<script>
+compression_dictionary_promise_test(async t => {
+  const link = document.createElement('link');
+  t.add_cleanup(_ => link.remove());
+  link.rel = 'compression-dictionary';
+  link.href = kRegisterDictionaryPath;
+  link.addEventListener("error", t.unreached_func("error event should not be dispatched"));
+  return new Promise(resolve => {
+    link.addEventListener("load", resolve);
+    document.head.appendChild(link);
+  });
+}, 'Load event is dispatched on link with rel=compression-dictionary.');
+
+compression_dictionary_promise_test(async t => {
+  const link = document.createElement('link');
+  t.add_cleanup(_ => link.remove());
+  link.rel = 'compression-dictionary';
+  link.href = "./resources/register-dictionary-network-error.py";
+  link.addEventListener("load", t.unreached_func("load event should not be dispatched"));
+  return new Promise(resolve => {
+    link.addEventListener("error", resolve);
+    document.head.appendChild(link);
+  });
+}, 'Error event is dispatched on link with rel=compression-dictionary returning a network error.');
+</script>
diff --git a/fetch/compression-dictionary/resources/register-dictionary-network-error.py b/fetch/compression-dictionary/resources/register-dictionary-network-error.py
@@ -0,0 +1,5 @@
+def main(request, response):
+    # https://fetch.spec.whatwg.org/#http-redirect-fetch
+    # If locationURL’s scheme is not an HTTP(S) scheme, then return a network error.
+    response.status = 302
+    response.headers.set(b"Location", "about:blank")
