Chrome will only pull emoji's from twemoji.maxcdn.com for todoist

Recently the agency I work with decided to block the maxcdn.com domain. That's when all my emoji's for todoist stopped working. I've tried using a bunch of different emoji extensions for chrome, but regardless of what I use, it uses the twemoji.maxcdn.com source to try to retrieve the image. Is this something that Todoist is doing or is it Chrome? I haven't noticed broken emojis on other sites, but I'm wondering if some part of todoist - maybe their react web server or something, uses that domain? Are their other emoji stores out there that I can somehow insert or is this just a server-side thing that Todoist would have to fix/change in order for it to work for me?