WebGL Context Lost Error on Mac Chrome - xr-simd-27.4.11.427.js Initialization Failure

Technical Support
1

Issue Description:

My 8th Wall WebAR project fails to initialize on Mac Chrome with a critical WebGL context error. The error occurs during 8th Wall XR engine initialization, before any custom application code executes.

The white screen appears with UI overlay elements visible, but the camera never opens and no AR functionality loads.

Error Messages:

Unhandled promise rejection: TypeError: Argument 1 ('shader') to WebGLRenderingContext.shaderSource must be an instance of WebGLShader
    at xr-simd-27.4.11.427.js

THREE.WebGLRenderer: Context Lost.

core:a-node:error Failure loading node: TypeError: undefined is not an object (evaluating 'r.activeCameraEl')

core:a-node:error Failure loading node: TypeError: undefined is not an object (evaluating 'this.system.registerLight')

core:a-node:error Failure loading node: TypeError: undefined is not an object (evaluating 'this.system.getDRACOLoader')

8th Wall XR Version: 27.4.11.427s

Error Sequence:

  1. Page loads successfully

  2. XR engine (xr-simd-27.4.11.427.js) begins initialization

  3. WebGL shader compilation fails during SIMD engine startup

  4. WebGLRenderer context is lost

  5. A-Frame systems fail to initialize (camera, lights, DRACO loader)

  6. Application shows white screen with UI elements but no camera feed

2

Can you reproduce the issue in any of our A-Frame sample projects?

More info would be helpful - what kind of AR experience is it? version of a-frame? code/link to the experience.