CSV Export problem with export-data.js in Firefox

[JohnPortella]

Hi,
Recently I realized that when downloading in CSV format, both the column separator and the decimal is the comma. This causes more columns to exist than they should.

Expected behaviour

"Category","Cities","Universities"
0,29.9,17.5
1,71.5,1.5
2,106.4,16.4

Actual behaviour

"Category","Cities","Universities"
0,29,9,17,5
1,71,5,1,5
2,106,4,16,4

Live demo with steps to reproduce

http://jsfiddle.net/qSfJw/6/

Affected browser(s)

Firefox v56

[pawelfus]

Hi @JohnPortella

Thank you for reporting the issue. Tested with:

• Firefox 56.0 (osx) -> buggy
• Firefox 56.0.1 (windows) -> works fine
• Firefox 57.0 (osx) -> works fine
• Firefox 57.0 (windows) -> works fine

Digging more, it's not related to the browser/system but to the browser's language localisation. In short, let's compare:

• (1.1).toLocaleString()
• (1.1).toString()

EN based browsers we get ., PL returns all decimal separators as ,. Actually, , is the correct one for PL (spreadsheets apps will interpret those as numbers).

I think we should set exporting.csv.itemDelimiter to ;.

@TorsteinHonsi