While exporting as csv file, file is getting downloaded but with name download and with no extension - csv

Question

While exporting as csv file, file is getting downloaded but with name as download and with no extension,
I tried searching solution but didn't got any.
below is the code. If I rename the file and save as csv it shows the correct data
_addPrintButton: function() {
var me = this;
this.down('#print_button_box').add( {
xtype: 'rallybutton',
itemId: 'print_button',
text: 'Export to Excel',
disabled: false,
margin: '20 10 10 0',
region: "right",
handler: function() {
me._onClickExport();
}
});
},
_onClickExport: function(){
var grid = this.down('#grid_box');
var data = this._getCSV(grid.items.items[0]);
window.location = 'data:text/csv;charset=utf8,' + encodeURIComponent(data);
//Ext.getBody().unmask();
},
_getCSV: function (grid) {
var cols = grid.columns;
var store = grid.store;
var data = '';
var that = this;
_.each(cols, function(col, index) {
data += that._getFieldTextAndEscape(col.text) + ',';
});
data += "\r\n";
_.each(that.records, function(record) {
_.each(cols, function(col, index) {
var text = '';
var fieldName = col.dataIndex;
text = record[fieldName];
if (text || text == 0) {
//text = record[fieldName];
data += that._getFieldTextAndEscape(text) + ',';
}
/*else if (fieldName === "Project" ) {
text = record[fieldName];
}
else if (fieldName === "Case") {
var size = _.size(record[fieldName]);
for (var i = 0; i < size; i++){
text = record[fieldName][i]
}
}*/
});
data += "\r\n";
});
return data;
},
_getFieldTextAndEscape: function(fieldData) {
var string = this._getFieldText(fieldData);
return this._escapeForCSV(string);
},
_getFieldText: function(fieldData) {
var text;
if (fieldData === null || fieldData === undefined) {
text = '';
} else if (fieldData._refObjectName) {
text = fieldData._refObjectName;
}else {
text = fieldData;
}
return text.toString();
},
_escapeForCSV: function(string) {
if (string.match(/,/)) {
if (!string.match(/"/)) {
string = '"' + string + '"';
} else {
string = string.replace(/,/g, '');
}
}
return string;
},

Answer 1

You're searching at the wrong place.
The web server has to add HTTP header Content-Disposition to indicate the recommended file name, e.g.
Content-Disposition: attachment; filename="correct_data.csv"