[OpenLayers-Users] Disappear layers with large scale google maps

[Ishikawa Hiroshi]

Dear all,

I'm facing a problem that a layer disappear when I use with large scale google maps.
We can see this problem on the page that is an openlayers official example page.
http://openlayers.org/dev/examples/google.html

There is a world map(coast line) layer on the page.
When I zoom in the largest zoom level or the 2nd largest zoom level
the check box become a disable status.

Is this a bug or a regulation of google maps?


Ishikawa Hiroshi