Incoming Webhooks Emojis stopped working

dominik____ 

I am experiencing the same issue. We have been using the MS Teams API to send messages that include emojis, but recently our clients have started complaining that the emojis are not working. Upon investigation, we discovered that the problem is caused by having emojis in the message body, which is resulting in a POST failure. This issue seems to occur for both emojis and their unicodes. To demonstrate, we tried sending two messages using cURL commands, one with an emoji unicode and another with a simple checkmark, and both resulted in failures:

curl -H 'Content-Type: application/json' -d '{"text": "😂"}' webhook_url;
curl -H 'Content-Type: application/json' -d '{"text": ":white_heavy_check_mark:"}' webhook_url;