Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test has a WPT meta file that expects 2 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /html/browsers/browsing-the-web/navigating-across-documents/empty-iframe-load-event.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>load event for empty iframe in relation to the event loop</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
setup({explicit_done:true});
let ran = false;
onload = function() {
let iframe = document.createElement("iframe");
iframe.onload = function() {
test(function() {
assert_equals(ran, false, 'Expected onload to run first');
}, "Check execution order on load handler");
if (ran) {
done();
} else {
ran = true;
}
};
document.body.appendChild(iframe);
// Nested timeout to accommodate Gecko, because the it seems
// the outer setTimeout takes its slot in the event queue right away
// but the load event task takes its slot only at the end of this script.
setTimeout(function() {
setTimeout(function() {
test(function() {
assert_equals(ran, true, 'Expected nested setTimeout to run second');
}, "Check execution order from nested timeout");
if (ran) {
done();
} else {
ran = true;
}
});
});
};
</script>