Secure connection start

I have a question, in 05_scratch_timing_context.view.lkml in snowplow/looker implementation,
why is there the secure_connection_start > 0 where statement ?
why do we exclude this cases and what does it mean ?
more explanation concerning the whole “secure_connection_start” also would be perfect

Also what would be it’s effect if remove this statement on the data ?

@Khaled_Seddik, it should have been >= rather than >.

The secureConnectionStart attribute is set to zero if a secure connection is not requested. It is taken from window.performance.timing object in the browser. There is a tutorial on performance timing context here: Measuring page load times with the performance timing context [tutorial]. It doesn’t sound right not to include pages where a secure connection is not requested.