Bug in Spatial IO Module KMZ reader

Question

There is an issue loading icon style from KMZ in the azure-maps-spatial-io package method atlas.io.read(string, options) when the Icon href refers to a local resource in the KMZ zip stream instead of an absolute path. E.g. open the file AL142024_004adv_TRACK.kmz, contains the files:

1. al142024_004adv_TRACK.kml
2. dPoint.png

The KML contains Style element with IconStyle definition:

<Icon>
    <href>dPoint.png</href>
</Icon> 

Observing the network tab, the library does generate a fetch of each embedded resource as a data uri i.e. data:image/png;base64,... but in the result SpatialDataSet.icons object is empty. It appears the support is already implemented but there is a bug in returning the result.

Reproducible on samples page https://samples.azuremaps.com/spatial-io-module/drag-and-drop-spatial-files-onto-map by dragging the KMZ file onto the map and observing that point features are not styled with the icon symbol. 

What is the process to submit such bug reports? This is a closed source library, else I would be happy to try submit the PR to resolve. I've posted the same bug here https://feedback.azure.com/d365community/idea/8be8c1f5-4985-ef11-9443-6045bdb6b57c

Answer 1

This is a very odd one as it works for most of the KMZ files I've tried, but not all. I tried debugging via the browser, but the KMZ reader logic is embedded in a bundled web worker with async/awaits mangled up, so hard to follow the code, that said I believe this issue is in the logic that preloads the embedded images. I'll reach out to the Azure Maps team and let them know how to reproduce this issue so they can investigate.

In regard to filling bugs/reporting issues, the two main ways to do this are;

• On these forums
• Create a support ticket in the Azure portal