Yes I have been tracking this and…
Safari
Resolved Issues
• WebApps saved to the home screen and webpages in SafariViewController can
now use the camera to capture images. (35542231)
This is in the release note of iOS 11.3 beta, so it should work once 11.3 is out.
iOS_11.3_beta_4_Release_Notes.pdf (151.2 KB)