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<!DOCTYPE html>
<title>Muted Errors</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
// https://html.spec.whatwg.org/#report-the-error
// If script's muted errors is true, then set message to "Script error.",
// urlString to the empty string, line and col to 0, and errorValue to null.
setup({allow_uncaught_exception: true});
window.log = [];
window.addEventListener("error", ev => log.push(ev));
function check(shouldBeMuted) {
assert_equals(log.length, 1);
var ev = log[0];
log = [];
if (shouldBeMuted) {
assert_equals(ev.message, "Script error.");
assert_equals(ev.error, null, 'error');
assert_equals(ev.filename, "", 'filename');
assert_equals(ev.lineno, 0, 'lineno');
assert_equals(ev.colno, 0, 'colno');
} else {
assert_not_equals(ev.message, "Script error.");
assert_not_equals(ev.error, null);
}
}
var test1 = async_test("Errors for same-origin script shouldn't be muted");
var check1 = test1.step_func_done(() => check(false));
var test2 = async_test("Errors for cross-origin script should be muted");
var check2 = test2.step_func_done(() => check(true));
var test3 = async_test("Errors for cross-origin script should be muted " +
"even if the script is once loaded as same-origin");
function step3() {
var script = document.createElement('script');
script.setAttribute('src', "//{{domains[www2]}}:{{ports[http][0]}}/html/semantics/scripting-1/the-script-element/cacheable-script-throw.py?iframe");
script.onerror = test3.unreached_func();
script.onload = test3.step_func_done(() => check(true));
document.body.appendChild(script);
}
function unreachable() { log.push("unexpected"); }
</script>
<script src="cacheable-script-throw.py" onerror="test1.unreached_func()()" onload="check1()"></script>
<script src="//{{domains[www2]}}:{{ports[http][0]}}/html/semantics/scripting-1/the-script-element/cacheable-script-throw.py"
onerror="test2.unreached_func()()" onload="check2()"></script>
<iframe src="//{{domains[www2]}}:{{ports[http][0]}}/html/semantics/scripting-1/the-script-element/muted-errors-iframe.html"
onerror="test3.unreached_func()()" onload="step3()"></iframe>
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