Webcam does not show stream in partkeepr when using Firefox 62

[thomas-nilsson-irfu]

System Information

• PartKeepr Version: 1.3.0 (but I suspect the issue is present also on 1.4.0 based on a cursory read of the source code in this repo).
• Reproducible on the demo system: Have not tried.

How to reproduce

• When trying to take an image from the webcam (add an image as an attachment to a part) and using Firefox 62 it does not work. There is no webcam image shown, however when running older versions of Firefox it did work.

I suspect it is down to the change described here: https://www.fxsitecompat.com/en-CA/docs/2018/url-createobjecturl-no-longer-accepts-mediastream-as-argument/
and the webcam widget (which has not changed since my installed version of 1.3.0) here:

PartKeepr/src/PartKeepr/FrontendBundle/Resources/public/js/Components/Widgets/WebcamPanel.js

Line 52 in 7dd3ef8

this.video.src = window.URL.createObjectURL(stream);

[thomas-nilsson-irfu]

Just as an update, this now affects Chrome as well. And the issue is confirmed with the demo.partkeepr.org site.

Steps to reproduce,

1. open demo site.
2. click "add part"
3. go to the "attachments" tab
4. click "take image"
5. it does not work.. No image is shown, if picture is taken then the attachment "webcam.png" is of zero size.