Hello 
I’d like to add some headers that Figma should use when invoking my endpoint, this will allow us to use Figma directly with Github Workflows for example, which requires an authentication token in the headers… there are many other cases.
Without this option, we will be forced to always have a middleware (e.g. a cloud function) between Figma and the other services we use. This is not efficient obviously, and I think that it’s on Figma’s side to improve the compatibility.
This option (adding custom headers) is quite common in the other services’ webhooks.
Is this something you’re planning to work on?