undefined error when using measureUserAgentSpecificMemory

[MajidBabaeifar]

Hello ,
I am trying to measure the application memory usage when running some OpenCV functions. I tried to use the new API performance.measureUserAgentSpecificMemory() but I get undefined error.
this is how I tried to use it:

if (!window.crossOriginIsolated) {
            console.log("performance.measureUserAgentSpecificMemory() is only available in cross-origin-isolated pages");
        } else if (!performance.measureUserAgentSpecificMemory) {
            console.log("performance.measureUserAgentSpecificMemory() is not available in this browser");
        } else {
            let result;
            try {
                result = await performance.measureUserAgentSpecificMemory();
            } catch (error) {
                if (error instanceof DOMException && error.name === "SecurityError") {
                    console.log("The context is not secure.");
                } else {
                    throw error;
                }
            }
            console.log(result);
        }
        if (this._isVisualizable(imageMat)) {
            cv.imshow(canvasSource, imageMat.Mat);
            return;
        }

This code gives me some build time errors and I also have problem with typescript when using this API.
I use webpack and React. Please ask me if you need any further information.
I appreciate some guidance or a better solution.