<!DOCTYPE html>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
if (window.internals)
    internals.settings.setContentDispositionAttachmentSandboxEnabled(true);
</script>
<p>This test verifies that external stylesheets are disabled when 'Content-Disposition: attachment' sandboxing is enabled. A security error will be logged to the console if the test passes.</p>
<iframe src="resources/external-stylesheets-frame.py"></iframe>
