Known issues and limitations

This page lists known issues, current limitations, and available workarounds for the HERE Maps API for JavaScript. Use this page to:

• Check whether an unexpected behavior you're seeing is a documented issue before opening a support request.
• Understand product boundaries when designing a map integration.
• Find workarounds where they exist.

For fixes, additions, and other changes per API version, refer to the Changelog.

Known issues

Known issues are defects that have been identified but not yet resolved. An issue may persist in later versions unless explicitly marked as resolved in the Changelog.

Vector map rendering in North Africa

The vector map rendering data lacks transliteration or English translation for certain regions in North Africa, such as Algeria. Place names in these regions may appear only in the local script.

Limitations and workarounds

Limitations are intentional product boundaries rather than defects. They are unlikely to change in the current major version and should be accounted for when designing your integration.

KML rendering

The KML extrude element takes into account only the first altitude of the first exterior vertex. Additional altitude values on other vertices are ignored when the geometry is extruded, so extruded KML polygons render with a uniform height derived from a single vertex — even when the source KML defines per-vertex altitudes.