[sensors] Sensor.timestamp must be nullable

pozdnyakov has just created a new issue for 
https://github.com/w3c/sensors:

== Sensor.timestamp must be nullable ==
The specification tells that "time origin. latest reading["timestamp"]
 is initially set to null" however 'timestamp' Sensor attribute is not
 nullable

Please view or discuss this issue at 
https://github.com/w3c/sensors/issues/159 using your GitHub account

Received on Friday, 27 January 2017 12:25:20 UTC