[editor] Content Security Policy directive blocks an image when navigating on marker map

jquery-2.1.1.min.e40ec2161fe7.js:3 Refused to load the image 'http://ssl.gstatic.com/ui/v1/disclosure/small-grey-disclosure-arrow-down.png' because it violates the following Content Security Policy directive: "img-src 'self' *.google-analytics.com *.doubleclick.net http://*.tile.osm.org *.tile.osm.org data:".