iOS and CORS

Anyone get this working on mobile with camera capture? I'm getting a CORS error. I've tried setting the crossOrigin attr on the img tag. I can write the camera data to the image tag just fine, but when I go to track against it I'm getting a cross origin error.

Start by reproducing the iOS camera-capture flow described in the issue and inspect the CORS error that occurs when tracking the image. Determine whether the failure is specific to the camera-generated image and crossOrigin handling; done means tracking works on mobile without the cross-origin error.

Written by the indexing model from the issue text.