all of my browsers are not sending the origin header

Question

I am trying to load an image into a canvas element and later pull the data out in toDataURL().

I have my site running with Ruby on Rails 2.3

I have my images

Answer 1

I was getting this CORS error, and in the server end the origin header was not being sent.

The problem for me was that I had set crossOrigin = Anonymous in my image tag. Removing that solved the problem for me, and the CORS error was gone.