An error occurred while rendering a label when contextOptions.requestWebgl1 is true

[eclosion]

What happened?

const viewer = new Cesium.Viewer("cesiumContainer", {
  contextOptions: {
      requestWebgl1: true,
  },
});

function addLabel() {
  viewer.entities.add({
    position: Cesium.Cartesian3.fromDegrees(-75.1641667, 39.9522222),
    label: {
      "text": "text",
    },
  });
}
addLabel();

the code above will produce an error:

TypeError: Failed to execute 'texSubImage2D' on 'WebGLRenderingContext': parameter 9 is not of type 'ArrayBufferView'.

here is sandcastle example

Reproduction steps

No response

Sandcastle example

No response

Environment

Browser: Chrome 129
CesiumJS Version: 1.122
Operating System: windows11

[ggetz]

Thanks for the report @eclosion!

I believe this is a regression from #12100.