Customer Happiness not clickable when using API

Customer Happiness not clickable when using API

Is there a way to automatically add the Customer Feedback links when generating email drafts via the API? Currently, the feedback links are only added when generating an email draft using the UI.

I tried using the endpoint described in 
https://desk.zoho.com/DeskAPIDocument#CustomerFeedback#CustomerFeedback_Getthecustomerfeedbackplaceholderlink to get the HTML code for the Customer Feedback link. The generated HTML looks fine, but when creating an Email draft via the API and inserting the Placeholder, the links are not clickable.

Best, Philipp