submit form with file upload + cross domain

rubyonrails-talk
1

I am trying to submit a form in rails 4 with File upload(using paperclip) to an another domain using Ajax with dataType ‘jsonp’ ( I tried both ajax and ajaxForm ).

// .js

$(“.form”).ajaxSubmit({

type: $(“.form”).attr(“method”),

dataType: “jsonp”,

url: $(“.form”).attr(“action”),

data: $(“.form”).serialize(),

success: function(data) {

console.log(‘respone’);

console.log(data);

}

});

I am getting the following error message.

Can’t verify CSRF token authenticity

Completed 422 Unprocessable Entity in 26ms

ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken):

I can save data when i am not attach any file.

I got one solution,

skip_before_filter :verify_authenticity_token

I can save data by skipping verify authentication token. But I think this is not a secure way.

Can any one know a secure way? any suggestion please!

Note: I am getting all the params values in the destination domain.

2

File upload + Cross domain + Response

Is there anyway to upload file from one domain to another domain.

i used ajax post method to submit the form but i am not getting response value.

please suggest someway to solve this problem.

Thanks in advance!

3

Only if you configure CORS, which usually means you have control over both servers. Do you?

Walter

4

Now you can "fake" an Ajax file upload with a hidden iframe, that's been popular since forever. It is a pain in the ass to get the response from the server to refresh the actual page, though.

Walter