Mixed Content: The page at 'https://...' was loaded over HTTPS, but requested an insecure image 'http://c.tile.openstreetmap.org/...'. This content should also be served over HTTPS.
Possible Fix in trackserver.php Line 81:
'tile_url' => 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
Possible Fix in trackserver.php Line 81:
'tile_url' => 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
Omit Protocol
'tile_url' => '//{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',