Cesium3DTileset doesn't propagate Request Headers for quantized terrains #1722
Description
What happened?
Hello Cesium team,
We’re trying to load a custom terrain in our application.
To access it (and other 3D Tiles we serve), we need to include an authorization header in every request to our API.
We can have access to the parent terrain/layer.json but subsequent request for the part of the terrain (like terrain/5/29/20.terrain?v=1.1.0) give us a :
LogCesium: Error: [2025-08-13 16:09:05.934] [error] [ErrorList.h:89] Errors loading quantized mesh terrain: - Received status code 401 for tile content...
In our logs server-side, we can see the authorization header set on the first layer.json, but is absent from further request from the same tileset.
Environment
Cesium for Unreal version: 2.18.0
Unreal Engine Version: 5.4
Operating System: Windows 11
Reproduction steps
No response
Supporting evidence
No response