Viewer fails to load surface shader for cortex.Vertex object in Firefox

[TomDLT]

The following code fails to load the surface shader in Firefox (both 81.0 and 82.0a1).

import cortex
dataset = cortex.Vertex.empty(subject="S1", vmax=1)
cortex.webshow(dataset)

Interestingly, the following does work:

• same dataset in Chrome
• change dataset to cortex.Vertex.empty(subject="S1", vmax=1).raw (create a VertexRGB object)
• change dataset to cortex.Volume.empty(subject="S1", xfmname='fullhead', vmax=1)

Console error: ```console THREE.WebGLProgram: Could not initialise shader. three.js:24578:12 WebGLProgram http://ato:48260/resources/js/three.js:24578 initMaterial http://ato:48260/resources/js/three.js:21968 setProgram http://ato:48260/resources/js/three.js:22041 renderBufferDirect http://ato:48260/resources/js/three.js:20304 renderObjects http://ato:48260/resources/js/three.js:21241 render http://ato:48260/resources/js/three.js:21101 drawView http://ato:48260/resources/js/mriview.js:76 draw http://ato:48260/resources/js/axes3d.js:133 _schedule http://ato:48260/resources/js/axes3d.js:5 ``` 

[cchen23]

Hi @TomDLT! Do you happen to have ideas about what was causing the surface shader to fail to load for cortex.Vertex objects in firefox?

[TomDLT]

No idea.