<li>If acquiring a position fails because of one of the

following reasons:

<dl class="switch">

<dt>

Underlying system denies permission:

</dt>

<dd>

<p>

[=Call back with error=] passing |errorCallback|

and

{{GeolocationPositionError/PERMISSION_DENIED}}.

</p>

<aside class="note" title=

"Browser permission VS OS permission">

<p>

On certain platforms, there can be a

circumstance where the user has

[=permission/granted=] the user agent

permission to use Geolocation, but the permission to

access location services has been denied at the

OS level.

</p>

</aside>

</dd>

<dt>

Data acquisition error:

</dt>

<dd>

[=Call back with error=] passing |errorCallback|

and

{{GeolocationPositionError/POSITION_UNAVAILABLE}}.

</dd>

</dl>