Incorrect recognition!

[alhashash]

I had some problems when trying to test some images on your website https://www.doubango.org/webapps/micr/

This E-13B code is not correctly recognized:

{
code :  200,
duration :  89,
orientation :  1,
phrase :  "OK",
rotation :  0,
zones : [
{
confidences : [ ... ],
description :  "E-13B",
fields : [ ... ],
klass :  1,
skew :  -0.007272599052403701,
text :  "C000000316A100000321563C",
warppedBox : [ ... ]
}
]

This image is also not recognized if it is in JPG format.

Saving the same file as PNG from JPG makes it recognizable!!!

[alhashash]

Here is the original files used for testing.