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Showing content from http://developer.mozilla.org/en-US/docs/Web/API/GPUDevice/popErrorScope below:

GPUDevice: popErrorScope() method - Web APIs

Limited availability

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The popErrorScope() method of the GPUDevice interface pops an existing GPU error scope from the error scope stack (originally pushed using GPUDevice.pushErrorScope()) and returns a Promise that resolves to an object describing the first error captured in the scope, or null if no error occurred.

None.

a Promise that resolves to an object describing the first error captured in the scope. This can be of type:

• GPUInternalError
• GPUOutOfMemoryError
• GPUValidationError

If no error occurred, it resolves to null.

The following example uses an error scope to capture a suspected validation error, logging it to the console.

device.pushErrorScope("validation");

let sampler = device.createSampler({
  maxAnisotropy: 0, // Invalid, maxAnisotropy must be at least 1.
});

device.popErrorScope().then((error) => {
  if (error) {
    sampler = null;
    console.error(`An error occurred while creating sampler: ${error.message}`);
  }
});

See WebGPU Error Handling best practices for a lot more examples and information.

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