Basemap disappears when past max zoom

[offtherailz]

Description

Original problem notified here on the mailing list

The maxNativeZoom option documented on UI looks to be ignored.

During a previous investigation I noticed that this configuration, used

{
  "options": {
    "maxZoom": 15,
    "maxNativeZoom": 15
  }
}

Looks to be working on normal layers. This looks to be an issue on UI description or usage of parameters passed.

Anyway a user reported that when used as "base layer" the layer disappears (waiting for the steps on mailing list).

We need to:

• Investigate if it is a problem of documentation or implemetnation
• While the behaviour is different on base maps

How to reproduce

• add as base layer the TMS: https://tiles.maps.linz.io/nz_aerialimagery_basemap/GLOBAL_MERCATOR/{z}/{x}/{y}.png with maxNativeZoom
• zoom over the max native zoom inserted

Expected Result

• the layer should be shown (a little nuanced because it will should tiles from lower levels of zoom

Current Result

• the layer disappears.

• Not browser related

Browser info

(use this site: https://www.whatsmybrowser.org/ for non expert users)

Browser Affected	Version
Internet Explorer
Edge
Chrome
Firefox
Safari

Other useful information