XHR Upload Progress is 100% from the start

Question

I\'m trying out the new XMLHTTPRequestUpload feature to upload some files to a php script, it mostly works fine, the upload starts, I get the finish response etc - but the progr

Answer 1

I have similar issue and I found reason. In my case the troublemaker is antivirus (bitdefender) on my PC. When I turn off bitdefender protection, the progress behaves exactly as it should.