I stored a geojson file (around 150 polygons) on Geoserver and called this layer with the WFS in OpenLayers (v4.6.4).
When the users clicks on the map, I display the information of the polygons. Nevertheless, It's a project for Asia and I have to manage special letter.
Do you know if there is a library to manage the asian letter with OpenLayers?
I'm using the function FeatureInfo of the WFS layer and not the file stored in my database postgresql.