Just recently we’ve noticed when sending messages containing links Twilio has started adding \n before the URL making the URL unusable and confusing recipients with how it displays in messages. My Twilio console shows we are receiving Error - 12300 (Invalid Content-Type: application/json supplied) when sending messages containing a link.
Error Description
Twilio is unable to process the Content-Type of the provided URL. Please see Twilio’s documentation on accepted content types for more information on valid Content-Types.
Is this something you can look into please?
Thanks.