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block-string-assignment-to-Element-setHTMLUnsafe.html
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block-string-assignment-to-Element-setHTMLUnsafe.html
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<!DOCTYPE html>
<html>
<head>
<meta name="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/helper.sub.js"></script>
<meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script';">
</head>
<body>
<div id="container"></div>
<script>
var container = document.querySelector('#container')
// TrustedHTML assignments do not throw.
test(t => {
let p = createHTML_policy(window, 1);
let html = p.createHTML(INPUTS.HTML);
var d = document.createElement('div');
document.querySelector('#container').appendChild(d);
d.setHTMLUnsafe(html);
assert_equals(container.innerText, RESULTS.HTML);
while (container.firstChild)
container.firstChild.remove();
}, "element.setHTMLUnsafe(html) assigned via policy (successful HTML transformation).");
// String assignments throw.
test(t => {
var d = document.createElement('div');
container.appendChild(d);
assert_throws_js(TypeError, _ => {
d.setHTMLUnsafe("Fail");
});
assert_equals(container.innerText, "");
while (container.firstChild)
container.firstChild.remove();
}, "`element.setHTMLUnsafe(string)` throws.");
// Null assignment throws.
test(t => {
var d = document.createElement('div');
container.appendChild(d);
assert_throws_js(TypeError, _ => {
d.outerHTML = null;
});
assert_equals(container.innerText, "");
while (container.firstChild)
container.firstChild.remove();
}, "`element.setHTMLUnsafe(null)` throws.");
// After default policy creation string assignment implicitly calls createHTML.
test(t => {
let p = window.trustedTypes.createPolicy("default", { createHTML: createHTMLJS }, true);
var d = document.createElement('div');
document.querySelector('#container').appendChild(d);
d.setHTMLUnsafe(INPUTS.HTML);
assert_equals(container.innerText, RESULTS.HTML);
while (container.firstChild)
container.firstChild.remove();
}, "`element.setHTMLUnsafe(string)` assigned via default policy (successful HTML transformation).");
// After default policy creation null assignment implicitly calls createHTML.
test(t => {
var d = document.createElement('div');
container.appendChild(d);
d.setHTMLUnsafe(null);
assert_equals(container.innerText, "null");
while (container.firstChild)
container.firstChild.remove();
}, "`element.setHTMLUnsafe(string)` assigned via default policy does not throw");
</script>
</body>
</html>