console.log(opts)
const getParameterProxyHandler = {
    apply: function (target, ctx, args) {
        const param = (args || [])[0]
        // UNMASKED_VENDOR_WEBGL
        if (param === 37445) {
            return opts.webgl_vendor || 'Intel Inc.' // default in headless: Google Inc.
        }
        // UNMASKED_RENDERER_WEBGL
        if (param === 37446) {
            return opts.webgl_renderer || 'Intel Iris OpenGL Engine' // default in headless: Google SwiftShader
        }
        return utils.cache.Reflect.apply(target, ctx, args)
    }
}

// There's more than one WebGL rendering context
// https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext#Browser_compatibility
// To find out the original values here: Object.getOwnPropertyDescriptors(WebGLRenderingContext.prototype.getParameter)
const addProxy = (obj, propName) => {
    utils.replaceWithProxy(obj, propName, getParameterProxyHandler)
}
// For whatever weird reason loops don't play nice with Object.defineProperty, here's the next best thing:
addProxy(WebGLRenderingContext.prototype, 'getParameter')
addProxy(WebGL2RenderingContext.prototype, 'getParameter')