Incompatibility with the latest stable version of Leaflet 1.9.1

[egofer]

Running npm install installs the latest stable version of Leaflet 1.9.1. This gives problems when running vroom-frontend, showing the error:

Uncaught TypeError: L.hasOwnProperty is not a function

If Leaflet is downgraded to the previous stable version 1.8.0 in the package.json file, the error disappears.

[jcoupey]

Thanks for reporting. Our package.json setup does not pin to a given Leaflet version but uses "compatible with 1.3.4":

vroom-frontend/package.json

Line 34 in 2f54846

"leaflet": "^1.3.4",

If the compatibility is broken when moving from 1.8.0 to 1.9.1, then this sounds more like an upstream semver problem to me.

In any case, we could probably do with a round of dependency updates here, happy to look at any PR heading this way.