ios 9 - xcode 7 - SFSafariViewController - Image Upload - Camera Black Screen

Edit iOS 11.3:Thank you to Rihards for commenting and pointing out this has been fixed.

This is apparently a known bug with the SFSafariViewController (I have submitted a radar which got closed). I faced the same issue that our mobile website was unable to get anything from the device, not the camera for a taken picture nor pictures from the camera roll. This was persisting in Safari and in SFSafariViewController, so we ended up simply redoing the complete upload process via native VC and Parse. However, I got a few suggestions from the Technical Support before doing all this and they told me to try the following:

1. Check with a second device. Sometimes this could be a bug only happening on one device due to a mistake in the permissions. Checking with the second device should exclude the option that something went wrong at the installation
2. Check the App's permissions in Settings. They told me that sometimes the blank screen came up if the User declined permission to use the camera. To check if this is the case, open settings, scroll down to the bottom and select your app. here you should see an ON/OFF toggle, which should both point to on. As seen in the screenshot below.

However, my two cents would be:

3. Consider using a UIWebview or the WKWebview instead. You said that your site is mobile friendly, then you could consider simply dragging a UIWebview into your storyboard and setting it up to point to your site. Here is a good tutorial on UIWebviews. The other, more obvious alternative would be to use WKWebview. In your update, you have however already pointed out that you have done this, so I will not link you to any tutorials.

Otherwise there's not much you can do as of right now, besides of filing another radar to Apple with their Bug Reporter. Lastly, you could submit a ticket for Tech support, however I wouldn't waste any of those as you only have 2 per membership year.

Hope that helps, Julian