Response body encoded as JSON string when function returning a domain representing media type is requested with Accept "*/*" header

[mkleczek]

Environment

• PostgreSQL version: 16
• PostgREST version: 12.0.2
• Operating system: Windows

Description of issue

I have the following function:

CREATE DOMAIN "text/javascript" AS text;
CREATE OR REPLACE FUNCTION "module.js"() RETURNS "text/javascript"...

When requested by a browser from:

<script type="module" src="/rpc/module.js"></script>

returned response body is encoded as JSON (ie. line breaks are replaced with \n) so even if - as a workaround for #3391 - I explicitly set content type in the function using current_setting, it is not valid JS code.

[steve-chavez]

returned response body is encoded as JSON

A consequence of the default handler (*/*) being application/json. This needs the any handler as mentioned on #3387 (comment).