After passing the parameter, image loading does not work

ostmal

I uploaded the image and everything worked fine for me.
In ajax it was written as follows:

ajax: {
            url: '/abc/dt/my/test/test.php',
            type: 'POST'
                },

I need to pass a parameter to the server.
I did this:

ajax: {
            url: '/abc/dt/my/test/test.php',
            type: 'POST',
            data: {
                param : '1'
            }
        },

The image stopped loading!!!
What to do?
You can view it here.

rf1234

This is a duplicate of this: https://datatables.net/forums/discussion/62190/file-upload-what-am-i-doing-wrong#latest

Please refrain from posting duplicates! This causes unnecessary work for all of us!

ostmal

ok