/usr/lib/ruby/vendor_ruby/web_console/templates/_inner_console_markup.html.erb is in ruby-web-console 2.2.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | <div class='resizer layer'></div>
<div class='console-outer layer'>
<div class='console-actions'>
<div class='close-button button' title='close'>x</div>
</div>
<div class='console-inner'></div>
</div>
<input class='clipboard' type='text'>
|