Any reason why nested objects in GeoJSON propereties get stringified in click event?

[reinhard-sanz]

Hello!
I've got multiple points on my map using GeoJSON in combination with Symbollayer . On my Symbol i have a very basic click-event, where i extract the clicked feature for later use.
I noticed that all nested objects in the properties field have been stringified.

Original:

Returned by click-event:

Is there a specific reason for this, or is this jsut a maplibre thing in general?

Thanks in advance!

[dabreegster]

It's maplibre in general: https://maplibre.org/maplibre-gl-js/docs/API/classes/Map/#queryrenderedfeatures
It's a limit of the MVT format, I think.

Quite annoying. One workaround is holding onto the original GJ, then using a feature ID from maplibre's queries to look up the full feature.

[reinhard-sanz]

Bummer, just found this maplibre/maplibre-gl-js#1325 so seems they are aware of it. :/

Thanks for the quick reply!

[dimfeld]

Interesting, I wasn't aware of this either. Thanks for the explanation!