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JavaScript Allow camera access - show camera view -- don’t start recording video


Thansks again for all the previous help.

This code below works successfully to capture/record (after camera access granted) when the start button is selected. I'm trying to add the ability where (after camera access is allowed) the camera view appears, without recording starting automatically. (And have the camera view displayed while recording).

Currently, the screen is black upon page load, and remains black after camera access and while capture/recording. Nothing appears in the screen until the recording automatically plays until: 'Stop".

Upon researching, I believe I may need to "capture the stream from the video element and put it through the MediaRecorder object", but I don't know how to do that. Any help is appreciated. Here's the current code:

var video = document.querySelector("video");
let params = { audio: true, video: { facingMode: { exact: "environment" } } };

let blobs = [];
let stream, mediaRecorder, blob;

async function startRecording() {
stream = await navigator.mediaDevices.getUserMedia({
audio: true,
video: true,

mediaRecorder = new MediaRecorder(stream);
mediaRecorder.ondataavailable = (event) => {
// Let's append blobs for now, we could also upload them to the network.
if (event.data) {