AR Scavenger - Camera access is blocked by default in chrome

[kelvin-xu]

Camera and Microphone access are blocked when using cross-origin iframe in Chrome https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-permissions-in-cross-origin-iframes. The change was shipped in early 2018.

Therefore, the new AR Scavenger content type will not work when embeded using a cross-origin iframe. Additional attributes are required, for example

<iframe src="https://example.com/" allow="microphone; camera"></iframe>

[otacke]

@kelvin-xu That's why there's #114

[kelvin-xu]

Oh sorry, I didn't notice that. Thanks for letting me know.

[otacke]

@kelvin-xu No problem at all! It's good to bring some attention to that problem again!