insert custom field in javascript

Hi
great plugin i love it!! 😀

but…

i need put a custom field [ml_field name=wpcf-stock-symbol]

in a javascript, but don’t work…

<//script type=”text/javascript” src=”https://www.barchart.com/widget.js?uid=03104bc30c64e606050077f187facd93&widgetType=chart&showChart=true&widgetWidth=396&chartType=LINE&chartColor%5Bline%5D=000000&fontColor%5Blinks%5D=004376&font=1&symbols%5B%5D=[ml_field name=wpcf-stock-symbol]&symbols%5B%5D=&symbols%5B%5D=&symbols%5B%5D=&symbols%5B%5D=&fields%5B%5D=name&fields%5B%5D=symbol&fields%5B%5D=last&fields%5B%5D=change&fields%5B%5D=pctchange&displayChars=”></script//>

any idea?

https://wordpress.org/plugins/mini-loops/