RAILS HIGHCHART HEROKU PRODUCTION illegal character

HI am using Highchart on rails on heroku.

View Source of : http://localhost:3000/highchart RAILS_ENV=production

series: [{
name: “Restaurants”,
pointInterval: 86400000,
pointStart: 1207526400000,
data: [[1325462400000, 4], [1325462400000, 5], [1325462400000, 3], [1328140800000, 5], [1328140800000, 3], [1328140800000, 4], [1330646400000, 3],

View Source of : http://highcharts.heroku.com/highchart On HEROKU

series: [{
name: “Restaurants”,
pointInterval: 86400000,
pointStart: 1207526400000,
data: [[1330646400000, #<BigDecimal:4e28430,‘0.23E1’,18(18)>], [1325462400000, #<BigDecimal:4e23d90,‘0.3E1’,9(18)>],
SOMETHING I MISSED , SOMETHING WRONG WITH HEROKU PG.