I am having the exact same issue, obviously it is a wordpress issue. I have disabled all plugins minus the one I am building, and it persists. I can’t exactly disable my theme and that is where the upload is triggered. Is there a theme I can use that has an uploader on the frontend, to test?
You can see mine here: http://www.northernfjell.com/clients/cremation-demo/obituary/robert-smith-07182016/
Click on the images tab and then share an image. What is going on?
Andrew Nevins
(@anevins)
WCLDN 2018 Contributor | Volunteer support
Regardless of whose fault the issue is, if you want support then you need to open your own thread: https://wordpress.org/support/forum/how-to-and-troubleshooting#postform
I can tell you that you are significantly reducing your chance of receiving support by posting in someone else’s thread.
Yep, same issue, disabled plugins, still happens.