I still can't upload photos from iOS8 Safari......but I'm guessing that is to do with an Apple glitch rather than anything here. Although I don't have any problems with other sites.
Apple released an 8.0.1 update that, amongst other things, addressed this:
Fixes a bug that prevented uploading photos and videos from Safari
Unfortunately, after people reported No Service issues and Touch ID problems, the update was pulled. At least we know they're aware of it and looking to fix it fairly quickly, so presumably they'll sort the other problems and re-release the update again soon.
Those who did manage to update to 8.0.1 said it cured the upload problem - so, hopefully, no long before it's properly fixed.