append_content_security_policy_directives(
:child_src => %w[127.0.0.1:8111 127.0.0.1:8112],
:connect_src => %w[nominatim.openstreetmap.org overpass-api.de router.project-osrm.org valhalla.mapzen.com],
+ :form_action => %w[render.openstreetmap.org],
:script_src => %w[graphhopper.com open.mapquestapi.com],
:img_src => %w[developer.mapquest.com]
)