Problem in select printer deviceName

[pedrohosoares]

###Electronjs ^6.0.4

When 'im select deviceName for printer the document, my app dont print, but, if put deviceName = '' (selecting the pattern printer), the app printer with success.

My code doesnt work:

janelaPrint.loadURL(url_balcao);
janelaPrint.webContents.once('did-finish-load', function() {
janelaPrint.webContents.print(
{
silent:true,
printBackground:false,
deviceName:'MP4200TH'
},
function(err){
console.log(err);
if(err){
}
}
);

[codebytere]

This has been fixed in v7, and needs to be backported to 6 if possible but it may be too difficult. See #17523 for more.