failed {'result': {'type': 'object', 'value': {'status': 'Tile data unavailable: test unavailable', 'retry': True}}}
recovered {'result': {'type': 'object', 'value': {'status': '', 'loaded': True, 'retry': False}}}
file {'result': {'type': 'string', 'value': 'Serve this folder over HTTP, for example with python3 -m http.server.'}}
errors []