upload file with xhr?

[bgvc]

Hello
I try to use a dropzone.js plugin to upload some file …. I use POST method and in my console I have:
OPTIONS https://......alfresco/service… 405 (Method Not Allowed)
OPTIONS https://......alfresco/service… Invalid HTTP status code 405
XMLHttpRequest cannot load https://...../alfresco/service/….. Invalid HTTP status code 405

But when I try a simple <form> input=file method=post action=alfresco/service… in a html page without plugin,it works fine,

How can I fix that ? it only caused by dropzone.js…

(I tried to put another action=url with other server it works fine too…just with alfresco service I have error 405 and method=OPTIONS ….)

[mrogers]

No OPTIONS is not allowed.

[bgvc]

In my plugin I put POST method and it become OPTIONS alone.(in console error 405 not allowed…)

[ghl]

What you are experiencing is the correct behavior due to CORS.  You need to enable CORS for the resouces you want to give access to.

[bgvc]

How can I give access to this plugin from alfresco? I'm thinking the CORS is already enabled…. because when I try a simple html form upload It works fine and I havn't some cross-origin problem that way

[bgvc]

up how can I enabled & allow XMLHttpRequest in cors to upload file ^^ someone knows