File download always with same name "file.<extension>"

Describe the bug

When the API we are calling, is sending a file with correct "Content-disposition" header that contains filename, the browser is downloading a file with a generic filename "file"

Expected behavior

The download of the file from the browser start with the correct filename.

Current behavior

The download of the file from the browser start with a generic filename "file".

Steps to reproduce

Pre-requisites: having an API endpoint that returns a file with correct headers in response (see screenshot)
Sending a request to that endpoint and trying to click "Send API Request".

Screenshots

Your Environment

• Version used: v3.0.0-beta.4 (Docusaurus version 3.1.0)
• Environment name and version:
  • Docusaurus side: Chrome Browser 122.0.6261.71 (Official build 64 bit);
  • BE side: SpringBoot BE engine and NGINX web server
• Operating System and version (desktop or mobile): Windows 11 Desktop

Reproduce the issue by using the browser's "Send API Request" action against an endpoint that returns a Content-Disposition filename, then inspect how the downloaded file name is chosen. The work is done when the browser download uses the filename from the response header instead of the generic "file" name.