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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /trusted-types/block-string-assignment-to-Document-write.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<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>
<script>
// TrustedURL assignments do not throw.
let p = createHTML_policy(window, 1);
test(t => {
document.body.innerText = '';
let html = p.createHTML(INPUTS.HTML);
document.write(html);
assert_equals(document.body.innerText, RESULTS.HTML);
}, "document.write with html assigned via policy (successful URL transformation).");
test(t => {
document.body.innerText = '';
let a = p.createHTML("abcdef");
let b = p.createHTML("ghijkl");
document.write(a,b);
assert_equals(document.body.innerText, "abcdefghijkl");
}, "document.write with multiple trusted arguments.");
// TrustedURL assignments do not throw. (Now for writeln.)
test(t => {
document.body.innerText = '';
let html = p.createHTML(INPUTS.HTML);
document.writeln(html);
assert_equals(document.body.innerText, RESULTS.HTML);
}, "document.writeln with html assigned via policy (successful URL transformation).");
test(t => {
document.body.innerText = '';
let a = p.createHTML("abcdef");
let b = p.createHTML("ghijkl");
document.writeln(a,b);
assert_equals(document.body.innerText, "abcdefghijkl");
}, "document.writeln with multiple trusted arguments.");
// String assignments throw.
test(t => {
const old = document.body.innerText;
assert_throws_js(TypeError, _ => {
document.write('A string');
});
assert_equals(document.body.innerText, old);
}, "`document.write(string)` throws");
test(t => {
const old = document.body.innerText;
assert_throws_js(TypeError, _ => {
let a = "abcdef";
let b = "ghijkl";
document.write(a, b);
});
assert_equals(document.body.innerText, old);
}, "`document.write(string, string)` throws");
test(t => {
const old = document.body.innerText;
assert_throws_js(TypeError, _ => {
let a = "abcdef";
let b = p.createHTML("ghijkl");
document.write(a, b);
});
assert_equals(document.body.innerText, old);
}, "`document.write(string, TrustedHTML)` throws");
// String assignments throw. (Now for writeln.)
test(t => {
const old = document.body.innerText;
assert_throws_js(TypeError, _ => {
document.writeln('A string');
});
assert_equals(document.body.innerText, old);
}, "`document.writeln(string)` throws");
test(t => {
const old = document.body.innerText;
assert_throws_js(TypeError, _ => {
let a = "abcdef";
let b = "ghijkl";
document.writeln(a, b);
});
assert_equals(document.body.innerText, old);
}, "`document.writeln(string, string)` throws");
test(t => {
const old = document.body.innerText;
assert_throws_js(TypeError, _ => {
let a = "abcdef";
let b = p.createHTML("ghijkl");
document.writeln(a, b);
});
assert_equals(document.body.innerText, old);
}, "`document.writeln(string, TrustedHTML)` throws");
// Null assignment throws.
test(t => {
const old = document.body.innerText;
assert_throws_js(TypeError, _ => {
document.write(null);
});
assert_equals(document.body.innerText, old);
}, "`document.write(null)` throws");
// Null assignment throws. (Now for writeln.)
test(t => {
const old = document.body.innerText;
assert_throws_js(TypeError, _ => {
document.writeln(null);
});
assert_equals(document.body.innerText, old);
}, "`document.writeln(null)` throws");
let default_policy = trustedTypes.createPolicy('default',
{ createHTML: (html) => {
return html.replace("Hi", "Quack")
.replace("transformed", "a duck")
.replace("defghi", "zxcvbn")
} }, true );
// Default policy works.
test(t => {
document.body.innerText = '';
document.write(INPUTS.HTML);
assert_equals(document.body.innerText, RESULTS.HTML);
}, "`document.write(string)` observes default policy");
test(t => {
document.body.innerText = '';
let a = "abcdef";
let b = "ghijkl";
document.write(a, b);
assert_equals(document.body.innerText, "abczxcvbnjkl");
}, "`document.write(string, string)` observes default policy");
test(t => {
document.body.innerText = '';
let a = "abcdef";
let b = p.createHTML("ghijkl");
document.write(a, b);
assert_equals(document.body.innerText, "abczxcvbnjkl");
}, "`document.write(string, TrustedHTML)` observes default policy");
// Default policy works. (Now for writeln.)
test(t => {
document.body.innerText = '';
document.writeln(INPUTS.HTML);
assert_equals(document.body.innerText, RESULTS.HTML);
}, "`document.writeln(string)` observes default policy");
test(t => {
document.body.innerText = '';
let a = "abcdef";
let b = "ghijkl";
document.writeln(a, b);
assert_equals(document.body.innerText, "abczxcvbnjkl");
}, "`document.writeln(string, string)` observes default policy");
test(t => {
document.body.innerText = '';
let a = "abcdef";
let b = p.createHTML("ghijkl");
document.writeln(a, b);
assert_equals(document.body.innerText, "abczxcvbnjkl");
}, "`document.writeln(string, TrustedHTML)` observes default policy");
</script>