Image upload in data-uri base64 doesn't work with large files

[sh]

Hello,

I am trying to use ckeditor's image plugin and I have encountered some issues with large images.

First of all, I have a java servlet that is mapped to the filebrowserUploadUrl. This servlet doesn't save the file locally, it only reads the binary data, converts it to base64 and create a "data-uri" link then calls the right function of ckeditor.

Anyway, it works well with small images (<500ko) and for bigger ones I have got a red X image and : "Failed to load resource" in my Javascript console.

It is definitly not a server issue, the post request works fine, I can get the data back and call ckeditor internal function. The error seems to occur in element.js line 19 :

setAttribute : (function()

{

var standard = function( name, value )

{

this.$.setAttribute( name, value ); here! return this;

};

...

I have tried to debug in Chrome and the value contains the right data-uri (however I can't see it entirely..)

I have also another error. Sometimes (I really don't understand how), The image is well read and displayed in the dialog. And when I try to add it (by pressing the "Ok" button), I get an alert "Image source URL is missing.".

It seems that this last error happens in more often in Firefox and the first one in chrome..

If I try to insert the same images as data-uri in javascript outside CKeditor, it works perfectly.

This never happens with small images.

I hope this is clear enough. Thanks in advance,