https://quotable.toolforge.org/ seems to load (but fails) third-party content via <link rel="shortcut icon" href="http://media.npr.org/favicon.ico" /> which should not happen for privacy reasons.
It also fails with a HTTP 502 to load https://quotable.toolforge.org/less/app.less and https://quotable.toolforge.org/less/waterbug.less
(History: Seems to come from T184300)