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Test Info: Warnings

  • This test gets skipped with pattern: (os == "win" && processor == "aarch64")
<title>Invalid formats raise decode errors with default messages for CORS cross-origin media</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript" src="manifest.js"></script>
<pre id="test">
<script class="testbody" type="text/javascript">
const manager = new MediaTestManager;
let gotErrSrcNotSupported = false;
let gotErrDecode = false;
function startTest(test, token) {
const is = function(a, b, name) {, b, `${}: ${name}`);
const v = document.createElement("video");
v.addEventListener("error", event => {
if (v.readyState == v.HAVE_NOTHING) {
is(v.error.code, MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED,
"Expected code for a load error");
is(v.error.message, "Failed to open media",
"Expected message for a load error");
gotErrSrcNotSupported = true;
} else {
is(v.error.code, MediaError.MEDIA_ERR_DECODE,
"Expected code for a decode error");
is(v.error.message, "Failed to decode media",
"Expected message for a decode error");
gotErrDecode = true;
v.autoplay = true;
// CORS-cross-origin URL.
gTestPrefs.push(["media.cache_size", 40000]);
manager.onFinished = () => {
ok(gotErrSrcNotSupported, "At least one test led to src-not-supported");
ok(gotErrDecode, "At least one test led to a decode error");
manager.runTests(gErrorTests, startTest);