The columnNumber is a non-standard property that contains the column number of the line at which the error was raised. It is recommended to not use this property on production sites facing the web, as it may not work for every user.
Use: This property is useful while creating an error object. If the column number is undefined for any error object, you can define it manually.
Error: Format not supported At Column number: 0
Error: Unexpected token output At Column number: 0
- Firefox for Android