Can't render chinese character

[crapthings]

possible to render chinese ?

{"data":{"chart":{"type":"area"},"title":{"text":"\u4f60\u597d"},"subtitle":{"text":"Source: Wikipedia.org"},"xAxis":{"categories":["1750","1800","1850","1900","1950","1999","2050"],"tickmarkPlacement":"on","title":{"enabled":false}},"yAxis":{"title":{"text":"Percent"}},"plotOptions":{"area":{"stacking":"percent","lineColor":"#ffffff","lineWidth":1,"marker":{"lineWidth":1,"lineColor":"#ffffff"}}},"series":[{"name":"\u65e5","data":[502,635,809,947,1402,3634,5268]},{"name":"Africa","data":[106,107,111,133,221,767,1766]},{"name":"Europe","data":[163,203,276,408,547,729,628]},{"name":"America","data":[18,31,54,156,339,818,1201]},{"name":"Oceania","data":[2,2,2,6,13,30,46]}]}}

[crapthings]

should read doc carefully~

https://github.com/highcharts/node-export-server#installing-fonts

sudo apt-get install fonts-wqy-zenhei
sudo fc-cache -fv