Getting "Form submission canceled because the form is not connected" error in chrome with extjs 6 - forms

Question

Created a form in extjs-6 - modern for file upload.
After new update on chrome browser i am getting following error "Form submission canceled because the form is not connected"
I tried with rendering the form on body also, still getting the same error.
Please suggest anything i am missing.Thanks in advance.
Ext.define('LayersSurvey.view.Attachments',
{
extend: 'Ext.form.Panel',
alias: 'widget.attachments',
controller: 'Basecontrol',
closeAction: 'hide',
closable: false,
colapsible: true,
//zIndex: 9999,
scrollable: true,
renderTo: Ext.getBody(),
multipartDetection:true,
items:
[{
xtype: 'selectfield',
label: 'Floor',
labelAlign: 'left',
//labelWidth :'30%',
name: 'attachmentType',
required: true,
options:
[{
text: 'G-2',
value: '-2'
}, {
text: 'G-1',
value: '-1'
},{
text: 'G',
value: '0'
}, {
text: 'M',
value: '0.5'
},{
text: 'G+1',
value: '1'
}, {
text: 'G+2',
value: '2'
},{
text: 'G+3',
value: '3'
}, {
text: 'G+4',
value: '4'
},{
text: 'G+5',
value: '5'
}, {
text: 'G+6',
value: '6'
},{
text: 'G+7',
value: '7'
},{
text: 'G+8',
value: '8'
},{
text: 'G+9',
value: '9'
},{
text: 'G+10',
value: '10'
}],
listeners:
{
}
},{
xtype: 'filefield',
//label: "Attachment:",
name: 'photo',
//bodyAlign:'center',
accept: 'image',
listeners:
{
tap:'onMediaChange'
}
},
{
xtype:'button',
text: 'Upload',
ui: 'action',
action:'',
listeners: {tap:'onMediaUpload'}
}]
});

Answer 1

In the config for your form, make sure enableSubmissionForm is set to false.
In the case where I had this issue, I was using Architect to create the web app version of my app, and in Chrome I was getting the same error. By default, enableSubmissionForm seems to be true in extjs 6.x modern.