If someone omits the "font" attribute from the Wordpress shortcode, the plugin specifies
font: ""
in the configuration JSON, leading to a 404 trying to load something like http://knightlab.northwestern.edu/wp-content/plugins/knight-lab-timelinejs/css/themes/font/.css?2.24
we should try to omit the empty string configuration parameter when there is no font. (And similar for any other optional configuration properties)
If someone omits the "font" attribute from the Wordpress shortcode, the plugin specifies
in the configuration JSON, leading to a 404 trying to load something like
http://knightlab.northwestern.edu/wp-content/plugins/knight-lab-timelinejs/css/themes/font/.css?2.24
we should try to omit the empty string configuration parameter when there is no font. (And similar for any other optional configuration properties)
(see this Wordpress Plugin Support ticket)