Parse-server: File upload - No 'Access-Control-Allow-Origin'

[cyboolo]

Hi

Could you help me to implement file upload with parse server on client side and on server side.

I have this error when I try to upload:

XMLHttpRequest cannot load https://evening-plateau-93592.herokuapp.com/parse/files/avatar.png. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://cyboolo.worldsecuresystems.com' is therefore not allowed access.

I have updated middleware.js with last commit but still the same problem.

Before migration to parse server, on client side, I used:

`myDropzone.on("addedfile", function(myfile) {

if(myfile && (myfile.size<3000000)){

    var name = "avatar.png";
    var parseFile = new Parse.File(name,myfile);

    parseFile.save().then(function(){

    Parse.Cloud.run("modify_avatar", {A:parseFile},{
                success: function(reponse){

                //on cloud code I attached the file path to User class.    

                },
                error: function(error){ console.log(error); }
            });


        }, function(error){});
    ////
    }    

});`

That worked perfectly but now with parse server I do not know how to make it work.

I have my db on mongodb and deployed parse server on heroku. Everything is working fine except this file upload that I can't manage.

Thank you for your help.

[IlyaDiallo]

I think that CORS is not enabled in the Parse-server example. You can use the cors module for that.

In the index.js:

var cors = require('cors'); // import the module

....
var app = express();
app.use(cors()); // Enable CORS

[gfosco]

2.1.3 included a change to cors headers. Should be fixed. Please re-open if not. Thanks.

[Avatarchik]

Hi!
XMLHttpRequest cannot load http://localhost:1337/parse/files/1456700001722.png. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:1337' is therefore not allowed access.

[ljunokas]

Is this solved? i get the same problem when uploading bigger file, like 1mb

[YassineBaggar]

try to change client_max_body_size in nginx