HTTPS everywhere fails to handle X-ICON resources.
Https Everywhere fails to fetch favicons or other link rel resources over https, preventing the blue adress bar on sites where favicons are specified on each page.
To reproduce the problem, visit
https://www.economist.com/node/18620710
with the current ruleset from git. To view resources, rightclick on page, select "page info", then click media. Observe that everything is fetched over https except the favicon.
An example screenshot is provided.