I have set up a twitter time line widget on my website, but it does not appear when the site url is https:// it works ok in http:// and I have even set the js.src to be https://
Under my Profile > Widget. I am not able to enter the full URL into the list of approved domains…(Enter the domains of the sites where you’ll be embedding this timeline.)… and can only enter the part after the “http(s)://” ie only example.com, but not http://www.example.com or https://www.example.com
it looks as if the widget does not recognize the domain as being approved.