Accented characters

[subdesign]

Can't use accented characters for labels or titles, for example using letter "é" I got "u009C" rendered. Using a jsfiddle example of highchart, entering there letter "é", renders well.

[nebulousGirl]

I got the same problem and found the solution.

The problem resides in the encode function from the library class.

Change this line:
$options = str_replace('\\', "", json_encode($options));

To this:
$options = preg_replace('#(\\\)[^u]#', '/', json_encode($options));

[subdesign]

Thank you , marvellous solution ! :)