Self-hosted engine binary still requires cdn.8thwall.com for Draco library

[kidapu]

Description

The xr-standalone.zip distributed for self-hosted deployments contains hardcoded references to cdn.8thwall.com, preventing fully offline operation.

Affected Files

File	Line	Code
xr.js	43	resolveDracoWorker:dI("https://cdn.8thwall.com/web/resources/draco-worker-l5sniji5.js")
xr.js	43	resolveDracoWrapper:dI("https://cdn.8thwall.com/web/resources/draco_wasm_wrapper-l325u8do.js")
xr-slam.js	43	resolveDracoWorker:pQ("https://cdn.8thwall.com/web/resources/draco-worker-l5sniji5.js")
xr-slam.js	43	resolveDracoWrapper:pQ("https://cdn.8thwall.com/web/resources/draco_wasm_wrapper-l325u8do.js")

Problem

According to the Self-hosted Project Migration Guide, projects should be able to run independently after migration. However, the
engine still fetches Draco (3D mesh compression) libraries from cdn.8thwall.com at runtime.

When 8th Wall CDN is discontinued, self-hosted projects using Draco-compressed 3D models will fail to load.

Suggested Solutions

1. Include Draco files in xr-standalone.zip - Add the required Draco worker files to the distribution
2. Make paths configurable - Allow developers to specify custom Draco library paths via XR8.configure() or similar
3. Use Google's official Draco CDN - Reference https://www.gstatic.com/draco/versioned/decoders/ instead, which is stable and maintained by Google

Environment

• xr-standalone.zip downloaded from https://github.com/8thwall/engine (latest as of 2025-01)