Enabling CORs on Unity multiplay servers.

Unity Services
,
1

Hello!

I have a WEBGL project where I use Unity Multiplay API’S to allocate servers. The problem is that my API response is getting blocked by CORs.
I disabled CORs on my browser and it worked fine, how can I setup custom headers on the Unity multiplay servers?

2

Bump, having same issue

3

We’re also having this issue.

Running the WebGL on localhost is fine at communicating with Game Server Hosting (Multiplay) REST API. However when we upload to a host providor we get an CORS restriction error in the browser console:

Access to fetch at 'https://services.api.unity.com/multiplay/servers/v1/projects/***/environments/***/servers' from origin 'https://ourdomain.com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

The htaccess file:

Header add Access-Control-Allow-Origin "https://services.api.unity.com"
Header add Access-Control-Allow-Credentials "true"
Header add Access-Control-Allow-Headers "authorization, origin, user-token, x-requested-with, content-type"
Header add Access-Control-Allow-Methods "PUT, GET, POST, DELETE, OPTIONS"
Header merge Vary Origin
</IfModule>
AddType application/wasm .wasm```

The 'servers' API request:
![9550888--1349731--upload_2023-12-28_11-42-54.png|714x933](upload://9b1OC0LojxJmnamsYVXLktGvrmv.png)

And response:

![9550888--1349734--upload_2023-12-28_11-45-11.png|738x818](upload://cy1PEeVRk9TIKclODki2O949ywu.png)

Help would be very much appretiated.
4

I’m also running into this issue!