Google chrome DOMException: Permission denied by system for navigator.mediaDevices.getUserMedia

Question

It's November of 2019, this JavaScript code works in FireFox (70.0.1 (64-bit)), Safari (13.0.2 (15608.2.30.1.1)), Opera (Version:65.0.3467.48), On a Windows Chrome Version 70.0.3538.77 (64-bit), this code works. but NOT in MacOS Google Chrome (Version 78.0.3904.108 (Official Build) (64-bit)):

navigator
.mediaDevices
.getUserMedia({video: true, audio: true})
.then(stream => {
    console.log("success!")
})
.catch(e => {
    console.log("e: ", e);
});

In Chrome's console, I got: DOMException: Permission denied After much googling, I haven't found anything up to date. How exactly do we use JS to request camera access in Chrome?

Solution 1

Since MacOS Mojave, camera and microphone require OS permissions.

This applies to all non-Apple products, including all browsers other than Safari.

Check System Preferences > Security & Privacy > Privacy > Camera & Microphone. Make sure Chrome is listed and has a checkbox.

You should have gotten a special OS prompt about this the first time Chrome tried to access them. But if it accidentally got blocked somehow, you won't ever be prompted again.

Solution 2

In my case, I did not realize the project I was working in was adding a security header, blocking the possibility of microphone use:

Feature-Policy "microphone 'none'; geolocation 'none'"

Solution 3

In my case, this error was occurring for me even though the site in question did not appear under blocked sites on the microphone setting page.

I had to go to Site Settings -> View Permissions and Data stored across all sites -> Find my Site -> Click Reset Permissions to fix the issue.

Comments

[teg_brightly]

If I specifically set the site's camera settings to "Block", I get the same exception. It should be set to "Ask".

[teg_brightly]

Have you checked this: github.com/webrtc/samples/issues/1191 Also does this page ask for a microphone? webrtc.github.io/samples/src/content/getusermedia/audio

[Nitin]

it helped it me! and I have remove mcrophone key from header!