Source code

Revision control

Copy as Markdown

Other Tools

Test Info:

async_test(t => {
// This could be detected as ISO-2022-JP, in which case there would be no
// <textarea>, and thus the script inside would be interpreted as actual
// script.
const blob = new Blob(
[
`aaa\u001B$@<textarea>\u001B(B<script>/* xss */<\/script></textarea>bbb`
],
{type: 'text/html;charset=utf-8'});
const url = URL.createObjectURL(blob);
const win = window.open(url);
t.add_cleanup(() => {
win.close();
});
win.onload = t.step_func_done(() => {
assert_equals(win.document.charset, 'UTF-8');
});
}, 'Blob charset should override any auto-detected charset.');
async_test(t => {
const blob = new Blob(
[`<!doctype html>\n<meta charset="ISO-8859-1">`],
{type: 'text/html;charset=utf-8'});
const url = URL.createObjectURL(blob);
const win = window.open(url);
t.add_cleanup(() => {
win.close();
});
win.onload = t.step_func_done(() => {
assert_equals(win.document.charset, 'UTF-8');
});
}, 'Blob charset should override <meta charset>.');