Check request status to correctly ignore 404 pages
Update to new file structure:
https://github.com/einars/js-beautify/commit/9de057f94c87ff23f4ca60e931a44ba11e1dd258
Use fake "window" object instead of "exports" to support new code
Use html_beautify() instead of style_html() to support new code
[sync]
Initial wrapping of css and html beautifier for require
https://github.com/einars/js-beautify/commit/39991177b81250e7b6f304273b6c7106533c34e4
Make requires for beautify-html.js compatible with different systems
https://github.com/einars/js-beautify/commit/1768f5741100a1a6d2633358ddb8786380688982