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Tie [=latest reading=] map to an origin #267

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Sep 18, 2017
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Tie [=latest reading=] map to an origin #267

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14 changes: 8 additions & 6 deletions index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -751,14 +751,16 @@ A <dfn id=concept-sensor>sensor</dfn> has an associated [=ordered set|set=]
of <dfn>activated sensor objects</dfn>.
This set is initially [=set/is empty|empty=].

A [=sensor=] has an associated <dfn>latest reading</dfn> [=ordered map|map=]
which holds the latest available [=sensor readings=].
The current [=browsing context=]'s [=sensor=] has an associated <dfn>latest reading</dfn>
[=ordered map|map=] which holds the latest available [=sensor readings=].

Any time the UA obtains a new [=sensor reading=] for a [=sensor=] from the underlying platform,
it invokes [=update latest reading=] with the [=sensor=] and the [=sensor reading=] as arguments.
Note: User agents can share [=sensor readings=] [=ordered map|map=] between different
[=browsing context|contexts=] only if the [=origins=] of these contexts' [=active documents=]
are [=same origin-domain=].

Issue: does the [=latest reading=] map need to be
tied to an origin?
Any time the user agent obtains a new [=sensor reading=] for a [=sensor=] from the underlying
platform, it invokes [=update latest reading=] with the [=sensor=] and the [=sensor reading=]
as arguments.

The [=latest reading=] [=ordered map|map=]
contains an [=map/entry=]
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