What happened?

When the map is moving, grabbing it to pan does not work.

What did you expect to happen?

We should be able to pan even if the map is moving.

How can we reproduce it (as minimally and precisely as possible)?

1. Go to map viewer (or any other page with a map)
2. Pan rapidly and try to pan again while it's moving.

On which environments the bug occurs?

Local

On which browser the bug occurs?

Firefox

OSRD version (top right corner Account button > Informations)

065d07e