<p></p>
<p>It comes from <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="162307551" data-permission-text="Title is private" data-url="https://github.com/ariya/phantomjs/issues/14376" data-hovercard-type="issue" data-hovercard-url="/ariya/phantomjs/issues/14376/hovercard?comment_id=387843044&comment_type=issue_comment" href="https://github.com/ariya/phantomjs/issues/14376#issuecomment-387843044">ariya/phantomjs#14376 (comment)</a> I think but the key point is that it doesn't work with the Debian/Ubuntu packaged phantom - you need to use the upstream one.</p>

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