Can't search with slow getConfig response (or slow bandwidth)

[Gaetanbrl]

Description

In some cases, Cadastrapp seems not correctly loaded and URL's values are not available (as not configured).

If not correctly loaded, we get console error and (sometime) an error tooltip :

'Url' must be a string not undefined

So, i think in some cases, mapstore plugin load states (on SETUP) before getConfiguration response and URL's are not available (Url must be a string not undefined).

Steps to reproduce

This behavior can be easily reproduce with a poor bandwhidth.
We reproduce every time here (https://dev.geo2france.fr) with a "slow" /getConfig response (takes ~150ms).

To reproduces, you can try this with the Craig IDS :

1. All works fine here

• Open https://ids.craig.fr/mapstore/#/context/cadastre
• All work fine.
• /getConfig request takes 40 ms (around).

2. Force error

• Change the browser network conditions (from console UI) to simulate slow bandwidth (3G as example)
• Open https://ids.craig.fr/mapstore/#/context/cadastre
• try to use
• see error
• See that /getConfig response takes more time