Feature attributes are not serialized to KML format about ol2 HOT 1 OPEN

this raises another issue: what form should attributes take? At the moment, kml is the only format (I think) which creates attributes as objects; all the others are simple key=value pairs. This means that attributes read in from kml aren't compatible with those created from other formats. I assume that this was done to cater for displayName on Data extended data nodes (SimpleData doesn't have this). Your function above won't output anything for attributes in the normal key=value form. (You can test in examples/vector-formats.html)

As displayName is optional anyway and won't be present on many if not most extendedData, I would question whether this incompatibility is worth it, and whether it wouldn't be better to store both Data and SimpleData nodes as simple key=value pairs, the same as other formats.

from ol2.