I am trying to enabled the Web cam using navigator.mediaDevices.getUserMedia() but not able to enabled camera in Iphone-13 in chrome browser.

navigator.mediaDevices.getUserMedia({ video: true, video: { width: 2160, height: 3840 } }) .then(async stream => {
           let bh_ = stream.getTracks()[0].getSettings();
                bh_.frameRate, bh_.height, bh_.width

                const camera = new Camera(videoElement, {
                    onFrame: async () => {
                        const d = new Date();
                        let seconds = d.getSeconds();
                        if (c == 0) fp_seconds = seconds;
                        c++;
                        if (seconds - fp_seconds != 0) {
                            fps_text_box.innerHTML = c;
                            c = 0;
                        }
                        await faceMesh.send({ image: videoElement });
                    },
                    width: bh_.width,
                    height: bh_.height,
                });
                camera.start()
            })