Resource interpreted as Image but transferred with MIME type application/octet-stream

Question

When loading my page I get this warning:

Resource interpreted as Image but transferred with MIME type application/octet-stream

My page is loading jpeg images. The server writes the images bytes to an output stream ans sends it to the client.

What do I have to do to prevent this warning?

Answer 1

You'll have to set the correct Mime type.
Set the correct Content-Type http header for the image.
For instance a jpeg image will have Content-Type: image/jpeg